Across
Old childminder shot French writer's son (9)
I haven't cracked this one yet — but Fifteensquared have:
GO (shot, as in give it a shot/go) + VERNE’S + S
Scottish give up bad diet around start of May (5)
I haven't cracked this one yet — but Fifteensquared have:
Anagram (bad) of DIET around M [ay], def meaning to resign or give up a post – I didn’t realise it was a particularly Scottish term, but Chambers tells me ‘ esp Scot’
Using secret identity male avoids coming out (5)
I haven't cracked this one yet — but Fifteensquared have:
Anagram (out) of CO [m] ING
When catching granny on backed-up toilet get potty (9)
I haven't cracked this one yet — but Fifteensquared have:
AS (when) around (catching) NANA on reversal (backed-up) of BOG
Stain and stick together shed in Beer busy SW seaside spot (14)
I haven't cracked this one yet — but Fifteensquared have:
TINT (stain) + insertion of GEL (stick together) + CAST (shed) in ALE . Beer is capitalised as it’s the name of another place on the southwest coast of England, though not as full of visitors as Tintagel, which has become a bit of a King Arthur theme park
Splintering boarded base for rail (7)
After cycling that lady's whisky is warming (7)
I haven't cracked this one yet — but Fifteensquared have:
HER MALT (that lady’s whisky) with the T cycling to the front
Getting health back read out on a list (7)
I haven't cracked this one yet — but Fifteensquared have:
Soundalike (read out) of ‘healing’, def referring to a ship that is leaning/listing
Dad's heading for Antarctica shortly to complete army training (7)
I haven't cracked this one yet — but Fifteensquared have:
PA’S + SOUT [h] (heading for/direction of Antarctica shortly). Not sure what ‘heading for’ is doing here cryptically – maybe simply indicating that PA’S comes first, though the surface grammar gives us that already, so presumably it’s just to make the surface read better
Doctor beginning to doubt Roger's charm in the sack (14)
I haven't cracked this one yet — but Fifteensquared have:
Anagram (doctor) of D [oubt] ROGERS CHARM IN
Curse that is extended by politician dealing with whip (9)
I haven't cracked this one yet — but Fifteensquared have:
Insertion into IE (‘that is’ extended by) of MP (politician) + RE (dealing with) + CAT (whip)
You shouldn't have everything you know taught (5)
I haven't cracked this one yet — but Fifteensquared have:
TA (you shouldn’t have) + KEN (everything you know, as in your ken)
Chain left marks on skin (5)
Best runner probably in class runs in socks (9)
Down
Almost all grouse in bag (4)
Hearing of hols in narrow boat prepare to cope with awful conditions (9)
I haven't cracked this one yet — but Fifteensquared have:
Soundalike (hearing of) of ‘vacs’ (vacations, hols) in eight (the sort of narrow rowing boat used in rowing races). The definition is a bit whimsical, ‘conditions’ presumably being used in the medical sense
Stand back up in ceremony when told (5)
Promised to stop talking English in terminus (7)
I haven't cracked this one yet — but Fifteensquared have:
Insertion of GAG (to stop someone talking) + E in END
Group beneath lead us on the climb in novel feature (7)
I haven't cracked this one yet — but Fifteensquared have:
LOT (group) beneath reversal (on the climb) of PB (chemical symbol for lead) and US from surface
Overalls brown with smeared grease (9)
Painter turned up one hour before morning tea-break (5)
I haven't cracked this one yet — but Fifteensquared have:
Reversal (turned up, in a down clue) of TEN AM (an hour before elevenses)
Tile Lesley positioned upside down at the last minute (10)
I haven't cracked this one yet — but Fifteensquared have:
Reversal (upside down) of LES SET (Lesley positioned) + LATE , the definition being a verb, not a noun
Racing driver I see eating meat in steak restaurant (10)
I haven't cracked this one yet — but Fifteensquared have:
Insertion (eating) of HAM into AH (I see) inside GRILL (steak restaurant). For those too young to remember, Graham Hill was twice Formula One world champion driver in the 1960s. His son Damon Hill was also an F1 champion
Empty bottles filled by blonder people in shower? (9)
I haven't cracked this one yet — but Fifteensquared have:
Insertion (filled by) of LIGHTER (blonder) in B [ottle] S , def referring to a group of unpleasant people
One creating secret character for Spooner in spy film (9)
I haven't cracked this one yet — but Fifteensquared have:
Spoonerism of ‘rune maker’
McKellen's magic role also in Blue Peter coming up? (7)
I haven't cracked this one yet — but Fifteensquared have:
Insertion of AND (also) in a reversal (coming up) of FLAG (the Blue Peter is a maritime signal flag as well as a long-running BBC children’s TV show)
Innovator going east during long walk on stilts (7)
I haven't cracked this one yet — but Fifteensquared have:
ON (going) + E inside (during) PIER (a boardwalk built on stilts)
Fully develop small state prison (5)
I haven't cracked this one yet — but Fifteensquared have:
RI (Rhode Island, the smallest US state by area) + PEN (penitentiary)
Land where there isn't any? (5)
I haven't cracked this one yet — but Fifteensquared have:
Cryptic def referring to a plane ditching/landing in a body of water
Grecian tenderly holds the beginnings of a pot (4)
Type letters or click words in the clue