Complete
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7 14 19 1 9 12 21 2 15 3 11 20 10 4 18 16 5 8 13 6 17
  1. 1 a A and O, for instance (5,5)
  2. 7 a Convoluted (8)
  3. 8 a Next in line? (4)
  4. 9 a Gangster's girlfriend (4)
  5. 10 a Largest living bird (7)
  6. 12 a Oppressed (11)
  7. 14 a Handcuff (7)
  8. 16 a Hairdo — skullcap (4)
  9. 19 a Supermarket chain (4)
  10. 20 a Dramatic performer? (8)
  11. 21 a Self-absorbed (10)
  12. 1 d Besom (5)
  13. 2 d Discharge of water (7)
  14. 3 d Double acts (4)
  15. 4 d It controls electricity flow in a circuit (8)
  16. 5 d ___ Pendragon, King Arthur's father (5)
  17. 6 d Common mineral, sometimes translucent and of gem quality (6)
  18. 11 d Sporty (8)
  19. 12 d Very much (6)
  20. 13 d Tube for dispensing small amounts of liquid (7)
  21. 15 d Reducing drastically (5)
  22. 17 d Former Belgian currency (5)
  23. 18 d Coffee-maker? (4)

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