Complete
00:00:00
8 10 13 16 6 5 19 1 17 2 9 14 3 11 15 4 12 18 7
  1. 5a Proceed without the help of others (2,2,5)
  2. 8a Comms code for G (4)
  3. 9a Done (8)
  4. 10a Profundities (6)
  5. 11a Cease operating (3,3)
  6. 13a Extravagant (6)
  7. 15a Truthful (6)
  8. 16a Eating to excess (8)
  9. 18a Cupid, son of Aphrodite (4)
  10. 19a Having taken everything into consideration (2,7)
  11. 1d Small pieces of coloured paper (8)
  12. 2d English county (abbr) (6)
  13. 3d Medical centre (6)
  14. 4d Responsibility (4)
  15. 6d Olympic field event (4,5)
  16. 7d Feeling of intense disgust (9)
  17. 12d Predisposition (8)
  18. 14d Oriental tobacco pipe with a long tube (6)
  19. 15d Period of one's greatest productivity (6)
  20. 17d Portable shelter (4)