1: Witticism provided theme (5)
2: Cretins destroyed tank (7)
3: Daytime 8-down repelled Marx (5)
4: Just desserts for Alpine tumble? (9)
5: Lines upset Frasier's brother (5)
6: Get by heroes? It's unlikely (7)
7: Nothing taken in easing random pains (7)
8: Mother loiters and pretends to be ill (9)
14: Quiet time to bellow fall, for example (3,6)
15: Two detectives produce a cosmetic (3,6)
16: One's in a band on the way up (7)
17: Ingrained reaction at home for wildlife (7)
18: Mechanical parts preserved in green gin ester (7)
20: Republican badly ires one on the way up (5)
21: Refuse to listen to the middle (5)
22: Cut up after having gambled, with death perhaps? (5)