Complete
00:00:00
7 9 13 16 5 18 1 10 2 8 15 14 3 12 11 4 17 6
  1. 5a Very steep (11)
  2. 7a High point (4)
  3. 8a Abnormally powerful person (8)
  4. 9a Relief (7)
  5. 11a Spicy Mexican sauce (5)
  6. 13a Landing stage (5)
  7. 14a Unoccupied post (7)
  8. 16a Curved, like an eagle's beak (8)
  9. 17a Bung — promotion (4)
  10. 18a Student of races and peoples (11)
  11. 1d Celebrate (4)
  12. 2d Sticky (7)
  13. 3d Ancient Roman country house (5)
  14. 4d Greek minced lamb dish (8)
  15. 5d Pretty — quaint (11)
  16. 6d Indoor ball game venue — SAS cut our HQ (anag) (6,5)
  17. 10d Scrap between women (8)
  18. 12d Place where King Arthur held court (7)
  19. 15d Swivel (5)
  20. 17d Bucket (4)