Complete
00:00:00
6 8 10 13 16 19 21 7 1 18 17 2 9 15 14 3 12 20 11 4 5
  1. 1a Wanton destruction (9)
  2. 8a Approaches (5)
  3. 9a Zizz zap (anag) – oomph (7)
  4. 10a As bright as before (8)
  5. 11a Parrot (4)
  6. 13a Grieves (for) (6)
  7. 14a Blunder (3-3)
  8. 16a Standard (4)
  9. 17a Pertaining to the basic units of life (8)
  10. 19a Poisonous plant (the scourge of farmyard birds?) (7)
  11. 20a Hit it off – boarded (3,2)
  12. 21a Medic (9)
  13. 1d Clerical robe (8)
  14. 2d Kid (6)
  15. 3d Cutting tool (4)
  16. 4d Tetchiness (12)
  17. 5d Singing voice (5-7)
  18. 6d The attempt to prove one’s superiority or gain an advantage (3-9)
  19. 7d Dollar or euro, say (4,8)
  20. 12d Yobbo (8)
  21. 15d Sanaa resident, e.g. (6)
  22. 18d Followers of a star (4)