Across
Healthy American eating a Japanese dish (6)
I haven't cracked this one yet — but Fifteensquared have:
FIT (healthy) + A (abbreviation for American), containing A + J (abbreviation for Japanese). Dish as in prepared food – grilled meat and/or vegetables rolled in a tortilla.
Beginning to justify mate's untidy stuff getting washed up (6)
I haven't cracked this one yet — but Fifteensquared have:
Beginning letter of J [ustify] + anagram (untidy) of MATE’S . Goods jettisoned from a ship to lighten its load in dangerous conditions, which may get washed up on shore.
Work out half of 4? Not quite (4)
I haven't cracked this one yet — but Fifteensquared have:
A rather devious wordplay: the first half of 4a is JET[sam], so we’re looking for PLAN [e] (as in jet plane) without the last letter (not quite).
Established champion claims northern origin (10)
I haven't cracked this one yet — but Fifteensquared have:
PROVEN (established) + ACE (slang for someone expert or very successful = champion), around N (abbreviation for northern).
Fruit characterised by overly dull jams (6)
Ancient vampire bats fly without wings (8)
I haven't cracked this one yet — but Fifteensquared have:
Anagram (bats = crazy) of VAMPIRE , then [f] L [y] without the outer letters (wings).
Insisting on something being difficult (9)
Abandon children so it's said (4)
I haven't cracked this one yet — but Fifteensquared have:
Sound-alike (so it’s said) of SEED = descendants.
Discharge with hard shove (4)
Complete housing project by centre of picturesque UK city (9)
I haven't cracked this one yet — but Fifteensquared have:
DONE (complete), containing (housing) CAST (project, as a verb, as in casting a silhouette on a wall), then the centre letter of [pictu] R [esque]. City in South Yorkshire.
Lack of moisture in canned sardines (8)
Good lord! See on retiring one's second childhood (6)
I haven't cracked this one yet — but Fifteensquared have:
EGAD (an archaic expression of surprise, equivalent to “good lord!”) + LO (lo! = see!), all reversed (on retiring). Old age may be a second childhood for some people, but I think many would object to the characterisation.
Forbidden city in Italy (in Italy!) overthrown initially being isolated (10)
I haven't cracked this one yet — but Fifteensquared have:
OUT (forbidden), then MILANO (Italian name for the city known in English as Milan, so “a city in Italy as it is called in Italy”) reversed (overthrown), then the initial letter of B [eing].
London team not established club (4)
I haven't cracked this one yet — but Fifteensquared have:
W [est] HAM (London football team) without EST (abbreviation for established). Club, as a verb = wham = to hit hard.
Pen 40% of story inside restaurant (6)
Familiar way to have eggs - including a dash of nutmeg (6)
I haven't cracked this one yet — but Fifteensquared have:
FRIED (a way to eat eggs), containing the first letter (a dash) of N [utmeg]. Familiar, as a noun = a close friend.
Down
Over the top of muesli mostly nuts (7)
Trip one's taken to the south exposing dictatorship (5)
I haven't cracked this one yet — but Fifteensquared have:
JAUNT (trip = a journey for pleasure), with the A (one) moved to the end (south, in a down clue). Spanish word for a government or administrative body, but in English it almost always refers to a military dictatorship.
Mistake on documents masks hospital's condition (7)
I haven't cracked this one yet — but Fifteensquared have:
TYPO (abbreviation for typographical error = a mistake in text) + ID (abbreviation for identity documents), containing (masking) H (abbreviation for hospital). Condition as in medical condition: typhoid = a bacterial disease causing fever.
Refer to Skinny being upset? It makes you sick! (6)
I haven't cracked this one yet — but Fifteensquared have:
CITE (refer to = quote) + ME (Skinny, our crossword setter), all reversed (upset = upwards in a down clue).
Out of form son unlucky to take English (9)
I haven't cracked this one yet — but Fifteensquared have:
S (abbreviation for son) + HAPLESS (unlucky), containing E (abbreviation for English).
Camera shot captures front of military craft ... (7)
I haven't cracked this one yet — but Fifteensquared have:
Anagram (shot = wrecked) of CAMERA , containing the first letter (front) of M [ilitary]. Handicraft using knotted cord.
... support vessel in one's flotilla? (13)
Like I said regularly - two people you and I - hard-working (9)
I haven't cracked this one yet — but Fifteensquared have:
AS (like) + alternate letters (regularly) from [i] S [a] I [d] + DUO (two people) + US (you and I). (Though the grammar isn’t quite right: we = you and I, us = you and me).
Worry as forward with United starts to run backwards (7)
25's clothes (7)
Country's aim - installing good network (7)
I haven't cracked this one yet — but Fifteensquared have:
END (as in “to that end” = aim = target), containing G (abbreviation for good) + LAN (abbreviation for local area network).
Marry after extremely regrettable service (6)
I haven't cracked this one yet — but Fifteensquared have:
PAIR (as a verb = join together = marry) after the end letters (extremes) of R [egrettabl] E . A slightly loose definition: I’d think of “service” (as in a car’s annual service) as making sure it continues to work correctly, and “repair” as fixing it when it doesn’t. But there’s some overlap between the two I suppose.
With spades gathered should you and I look for water? (5)
I haven't cracked this one yet — but Fifteensquared have:
DO WE (do we . . .? = should you and I?), containing S (abbreviation for spades in card games).
Type letters or click words in the clue