Complete
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6 8 10 13 16 19 21 7 1 18 17 2 9 15 14 3 12 20 11 4 5
  1. 1 a Backed by all (9)
  2. 8 a Endorsement printed on a book cover (5)
  3. 9 a Fortress — Aldi etc (anag) (7)
  4. 10 a Competitors (8)
  5. 11 a ___ Shankar, Indian sitarist and composer, d. 2012 (4)
  6. 13 a John in America (6)
  7. 14 a Bungled tennis shot? (6)
  8. 16 a Per person (4)
  9. 17 a Safety barrier (4,4)
  10. 19 a Ventures — quips (7)
  11. 20 a Odds that could double your money (5)
  12. 21 a Prefabricated building with a corrugated iron roof, first produced in WWI (6,3)
  13. 1 d Not surpassed (8)
  14. 2 d American author, Louisa May ___ , d. 1888 (6)
  15. 3 d Keen on (4)
  16. 4 d Out of the ark! — Noah's odd life (anag) (3-9)
  17. 5 d Egocentrism (4-8)
  18. 6 d Action that serves as a warning to others (6,6)
  19. 7 d Carl's lunatic (anag) — acclaim for actors at the end of a play (7,5)
  20. 12 d It should keep one afloat (4,4)
  21. 15 d Colourless brandy made from morello cherries (6)
  22. 18 d Fair — punishment (4)

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