Across
Certainly a lowish bid by girl (7)
I haven't cracked this one yet — but Fifteensquared have:
1NT (=lowish bid, in bridge, i.e. One No Trump) + RUTH (=girl, i.e. female forename)
Undamaged monitor about to be sent back inside (7)
I haven't cracked this one yet — but Fifteensquared have:
P RE FECT (=monitor, in school); “ about (=re, i.e. regarding) to be sent back” means letters “re” within the word are sent back
The main writers in Donegal oddly unrepresented (7)
I haven't cracked this one yet — but Fifteensquared have:
PENS (=writers, i.e. writing implements) in <d> O <n> E <g> A <l> (“oddly unrepresented” means that all odd letters are dropped)
Master enters Exeter prepared for highest degree (7)
Mashed barley left out as herbal drink (5)
A long note to inspire read out by Winstone (5)
Drink to consume when cycling (3)
I haven't cracked this one yet — but Fifteensquared have:
EA T (=to consume); “when cycling” means last letter moves to front of word
Maybe thiamine deficiency is dismal (5)
I haven't cracked this one yet — but Fifteensquared have:
Cryptically, since thiamine is vitamin B1, “B lack” could be “maybe thiamine deficiency”; a black outlook would be dismal, depressing
It’s found in coal gas and seaweed (4)
Bring short strap back and wallop (4)
Time to beg for a job (4)
Said Python is a graven image (4)
Pasty initially expelled after a tiny bit (5)
I haven't cracked this one yet — but Fifteensquared have:
WHIT (=a tiny bit, smallest amount of) + E <xpelled> (“initially” means first letter only); someone who is pasty-faced looks very pale, white
First person to be caught in part of storm (3)
Parts of foot missing in second contest with men (5)
One harbour in trouble without our Indian state (5)
A board game and some books welcome (7)
9 heading off to collect 10 sons - that’s (7)
I haven't cracked this one yet — but Fifteensquared have:
[TEN (=10, the numeral) + S (=sons)] in <n> INE (=9, the numeral; “heading off” means first letter is dropped); intense is extreme (=entry at 10)
Deceptive appearances? Everyone in fancy dress disheartened (7)
I haven't cracked this one yet — but Fifteensquared have:
ALL (=everyone) in FA <n> CY (“disheartened” means middle letter is dropped)
Good will or ill new year follows old (7)
Down
Girl hangs onto old recipe for a key material (5)
I haven't cracked this one yet — but Fifteensquared have:
[O (=old, as in OT) + R (=recipe, from Latin)] in IVY (=girl, as in female forename); ivory was traditionally used to make white piano keys
Rave tribe ask about Ecstasy sudden deaths (9)
Perhaps loosen carpet round top of stairs and take pile down (7)
I haven't cracked this one yet — but Fifteensquared have:
S <tairs> (“top of” means first letter only) in UNTACK (=perhaps loosen carpet, i.e. remove tacks holding it down); the “pile” of the definition refers to a heap, stack
A bed scattered with stash around its top part (9)
I haven't cracked this one yet — but Fifteensquared have:
*(A BED) in HOARD (=stash, cache); “scattered” is anagram indicator; a headboard is the top part of a bed
Serenity's heard - Moonlight Sonata perhaps (5)
Swine from E Devon waterway? (6)
I haven't cracked this one yet — but Fifteensquared have:
R (=River) Otter could be described as an “E Devon waterway”; a rotter is a swine, a cur
Strain of electronic glam rock band turned up (5)
Initially cornered 25 5D in Kafka’s work (9)
I haven't cracked this one yet — but Fifteensquared have:
The castle (or rook) is an “initially cornered chess (=entry at 25) piece (=entry at 5D)”, meaning that it starts a game in the corner of the board; The Castle is a 1926 novel by the German-language writer Franz Kafka
Richer gambler on his way (9)
Metal worker to work with large medal hit when cast (9)
Attack entrance to broadcast (9)
I haven't cracked this one yet — but Fifteensquared have:
Homphone (“broadcast”) of “way-in (=entrance) to”
Webmaster’s expurgated lexicographer (7)
A small bloomer from soprano Miss 14A (originally Miss 21A) (6)
Some toe the line for noble girl (5)
Term for structure of skeleton - a key material (5)
I haven't cracked this one yet — but Fifteensquared have:
<structur> E (“term for” means last letter only) + BONY (=of skeleton); ebony was traditionally used to make black piano keys
Around yard stags like marshy grasses (5)
Type letters or click words in the clue