Complete
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8 10 13 16 6 5 19 1 17 2 9 14 3 11 15 4 12 18 7
  1. 5a Rotating tray (4,5)
  2. 8a 6th Greek letter (4)
  3. 9a Salad dressing ingredient (5,3)
  4. 10a Stunning – Danzig (anag.) (6)
  5. 11a Thorough people don’t do things by these (6)
  6. 13a Tashkent natives (6)
  7. 15a Positively charged subatomic particle (6)
  8. 16a Man making his first appearance (8)
  9. 18a Mountain goat (4)
  10. 19a Plucked as opposed to bowed (9)
  11. 1d Periodical (8)
  12. 2d One is part-human, part-machine (6)
  13. 3d Swiss city (6)
  14. 4d Stare (4)
  15. 6d Wowed (9)
  16. 7d Regions in which the clocks are synchronised (4,5)
  17. 12d Inspect closely (4,4)
  18. 14d Stylish (6)
  19. 15d Coup (6)
  20. 17d Sub-machine guns (4)