1: In morning, use me and part of the Bible for diversion (9)
2: Liquidation of one country led by pair of fools (13)
3: Tiny weight once you're in (5)
4: Barmaid slipped, leading to a spectacular disaster. (6, 7)
5: Ditch a worker is cutting (9)
6: Relatives reject South Dakota styles (5)
8: Changed musician not so offensively pious (13)
9: Dangerous undertaking skiers in busy S bend (5,8)
13: Dickensian Iron Age? (4,5)
15: Undersized ones gripping coin, for starters (9)
18: Child has a chip, by the sound of it. (5)
20: Neil Armstrong, first to return from another world? (5)