1: After a second, whip and rip (5)
2: Defusing timer incorrectly can lead to this! (13)
3: Slows down before a drive in a fast lane (4,5)
4: Short bloke discontinued hike (3)
5: Carelessly let teeth rot completely (2,3,6)
6: A couple of eerie bears look quietly, and slip away (5)
7: Ed hates broken earphones (7)
9: Drink to them, not with them. (6,7)
11: Upset top duo; I went and confessed (5,2,2,2)
15: Lands filled with soft-shelled creatures (9)
16: Lawman sees woman with guitar hook (7)
19: One who heals despicable person on TV hospital program (5)
21: Something useful - like a matching collection? (5)