1: Wreck plastic cup rack (5-2)
2: Ancient history part is excessively trimmed (7)
4: Remote and barbarous Irish school (5,4)
5: Drained journo covers polly deadlock (7)
6: Double profit repeatedly (5,3,5)
7: Delay American writer in South Dakota (7)
9: Bug found in examination and in a full going-over (10,3)
15: 16-down cousin waves at gorilla (9)
16: Boudoir broom closets - a cause for Bob Dole (7)
18: It's over, over, over, kept apart by past payment (7)
19: Glass part of lock (7)
21: Rams try beating hounds to death (7)
23: Retro gents in exotic parks (5)