Complete
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7 9 16 17 20 22 1 12 13 2 18 3 10 23 8 11 21 4 14 19 5 15 6
  1. 1 a Zimbabwean president, 1987-2017 (6)
  2. 4 a Boy's name — a long way (5)
  3. 7 a Fights (6)
  4. 8 a Pollen-producing part of a flower (6)
  5. 9 a Yemen's chief port (4)
  6. 10 a Okayed (8)
  7. 12 a Not properly tuned (11)
  8. 17 a Postponed (8)
  9. 19 a Highly strung (4)
  10. 20 a Slackness (6)
  11. 21 a Pay back (6)
  12. 22 a Unfortunately (5)
  13. 23 a Poisonous snakes (6)
  14. 1 d Road surface (7)
  15. 2 d Light anchor — real GNP (anag) (7)
  16. 3 d Nonparticipant (9)
  17. 4 d Of small importance (5)
  18. 5 d Normandy port (2,5)
  19. 6 d Walk with long steps (6)
  20. 11 d Looted (9)
  21. 13 d Attached (7)
  22. 14 d Foot-operated lever (7)
  23. 15 d Stray from the subject (7)
  24. 16 d Grown-ups (6)
  25. 18 d Irritable (5)

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