Across
Fly like some insects, or bat (7)
Like husband found in a fornicating situation? (7)
I haven't cracked this one yet — but Fifteensquared have:
AS H (like husband) in A BED
Food in repast is oddly deficient (4)
Mark similar to 18, but higher (10)
Snaps emerging branches (6)
Maximally exposed, first covering up hole (8)
Minded after power is handed over (9)
I haven't cracked this one yet — but Fifteensquared have:
RESENTED (minded) after P (power)
Secure arms from Communist Russia (5)
One among 6, 25 amalgamated, or what divides them (5)
Monarch displayed in museum – initially housed show in ground-floor extensions (9)
I haven't cracked this one yet — but Fifteensquared have:
ER (monarch – take your pick) in V AND A (Victoria and Albert – museum) + Housed Show, initially
Invariably costly meal, it's said, extended by indefinite period (8)
Kind of 18, or kind of blue (6)
Flits with dashing young men around small Roman square (10)
Tyrannical ruler found in previous answer, after all (4)
I haven't cracked this one yet — but Fifteensquared have:
Exactly what it says on the tin: IVAN is found in GALLIVANT, after ALL – a reference to Ivan the Terrible
Originality of points, three of them in all (7)
I haven't cracked this one yet — but Fifteensquared have:
I’ve had a blind spot here: we have all four compass points, three of them twice, but I can’t see quite how the clue works Edit – thanks to KVa @1 Points, three of them (3 points)=N E S in All (all 4 points) N E W S
Conservative regret about pathetic campaign (7)
Down
Inflict corporal punishment on kid, for example (7)
Start of tribute about stupid Italian poet (5)
Passing white's soaring over grass (8)
Add fatty stuff to heart of cabbage, say (6)
I haven't cracked this one yet — but Fifteensquared have:
[cab]B[age] + UTTER (say)
Put in situation hard to get out of? Possibly, providing one red's OK (9)
I haven't cracked this one yet — but Fifteensquared have:
An anagram (possibly) of ONE RED’S OK
Ambassador's immersed in European matter in Greek city (7)
I haven't cracked this one yet — but Fifteensquared have:
HE’S (His/Her Excellency’s – ambassador’s) in E (European) PUS (matter)
Endlessly distrust the writer taken in by penchant for verbal ambiguity (6,7)
I haven't cracked this one yet — but Fifteensquared have:
DOUB[t] (endlessly distrust) + ME (the writer) in LEANING (penchant)
A point above 18 in game before final pass forward (9)
Rowdy drunk driver admitting nothing (8)
I haven't cracked this one yet — but Fifteensquared have:
CAR USER (driver) round O (nothing)
Put out eggs – almost leave out scrambled (7)
It's not easy catching variety, American counterpart of 24 (7)
Doesn't finish some panda food (6)
Is highly moving in theatre part (5)
Type letters or click words in the clue