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 Cavalier's foe (9)
  2. 8a Abel's brother (4)
  3. 9a Predicament (8)
  4. 10a Scam — musical instrument (6)
  5. 11a Further up (6)
  6. 13a Gratitude (6)
  7. 15a Don Quixote's squire, ___ Panza (6)
  8. 16a Where light meals may be bought (5,3)
  9. 18a Sneering look (4)
  10. 19a Elongated (9)
  11. 1d Took part (6,2)
  12. 2d Unlike anything else (6)
  13. 3d Beat soundly (6)
  14. 4d Stiff paper (4)
  15. 6d Disappearing (9)
  16. 7d Priceless newspaper (9)
  17. 12d Taller and thinner (8)
  18. 14d Curved cavalry swords (6)
  19. 15d Allowing no deviation (6)
  20. 17d Appealing — cunning (4)