Complete
00:00:00
1 9 11 14 21 22 24 17 2 15 8 18 3 4 12 23 5 10 16 19 25 6 20 7 13
  1. 1a Ostentatious ceremony (4)
  2. 3a Appraised (8)
  3. 9a Not connected to the internet (7)
  4. 10a Resentment of a slight (5)
  5. 11a Precise (5)
  6. 12a Four quarts (6)
  7. 14a Serving as an ordinary seaman in an old sailing ship (6,3,4)
  8. 17a Block of Earth's crust lifted to form peaks of a mountain range (6)
  9. 19a Card game (5)
  10. 22a Large commune of Rome at the mouth of the Tiber (5)
  11. 23a Non-attendance (7)
  12. 24a Hearth (8)
  13. 25a Conceited (4)
  14. 1d Adages — Old Testament book (8)
  15. 2d Criminal organisation (5)
  16. 4d Legerdemain (7,2,4)
  17. 5d Evict (5)
  18. 6d Huge coniferous California trees (7)
  19. 7d Harts and hinds (4)
  20. 8d Speak at length about trivial matters (6)
  21. 13d First Minister of Scotland since 2014 (8)
  22. 15d Praise insincerely (7)
  23. 16d Uncover (6)
  24. 18d Leading performers (partnered with stripes?) (5)
  25. 20d East Africa country (5)
  26. 21d Code G (4)