1: Master William's title - or not? (7)
3: Confederate general accepts a satisfactory discharge (7)
7: Nick's not at church (5)
9: Evaluation pack of standard images (4,5)
11: Goes through ere sixpence circulates (11)
13: Mediterranean leaves unfashionable coins? (3)
15: Cops and I abandon frayed trampoline (9)
16: Scrabble piece having D and a diacritical mark (5)
17: Neil Armstrong initially brought back extraterrestrial (5)
18: Page with scope for truism (9)
19: Wander around inside territory (3)
20: Hostile warning: one man has captured the queen (11)
21: Glasses for ships (9)
22: Some gambling couple no longer in bed! (3-2)
24: Employ new, rare chemical compound (7)
25: Publicity about Bohr dissolutely led to drink.(7)