1: Show singular glasses? (9)
2: Dickensian Iron Age? (4,5)
3: Fifty are returning after the last hemp mixture has a short life cycle (9)
4: Changed musician not so offensively pious (13)
6: Reliable, timeless jet (5)
7: Prepared for real active time (5)
9: 'Ransom'? Lame. Run 'Rocky I', 'II', 'III', etc. (5,8)
10: Pronounced ability to smell negative votes (3)
14: Welsh resort - and no dull resort (9)
15: Does Rod go to pieces with kind but impractical reformers? (2-7)
16: Win, or find an heir (9)
19: ... squeeze in girdle as we speak (5)
20: Approve a constant beast (5)
21: You audibly ram partner (3)