Sorcha's Christmas Crossword

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Across
  1. 3. Canadian expression of uncertainty (2, 2)
  2. 6. Reversed or inverted (6, 3)
  3. 8. Arya's companion (3, 5)
  4. 10. Critical situations (6)
  5. 12. Buzzing insect's awkward stumble (6)
  6. 14. Venue near Dublin that hosts enchanting concerts amid its historic walls (8, 6)
  7. 15. Irish singer-songwriter (6)
  8. 16. Feline Friend (3)
  9. 17. Captured moment (5)
  10. 20. Slow-moving mailbox? (8)
  11. 22. You but in a recreational sense (6)
  12. 23. Childhood pastime (6)
  13. 25. Fairness (6)
  14. 28. American Idol winner (6, 9)
  15. 30. Without a doubt or a polite affirmation (9)
  16. 32. And of course ______, Obvious destination (4)
  17. 33. No Tayto to be had (3, 12)
  18. 35. Legal wrong (4)
  19. 38. Village in Northern Ireland (8)
  20. 39. Graceful waterfowl in pairs (5)
  21. 40. Rock singer (8)
Down
  1. 1. Tequila-based cocktail with a hint of lime (9)
  2. 2. You but in a professional sense (9)
  3. 4. Actually the Best Chinese (3, 7)
  4. 5. Worth getting a third main, tasty (5)
  5. 7. Seasoning for icy paths (8)
  6. 9. A city with a three sided castle (8)
  7. 11. Meath's take on Rocksalt (5, 3, 6)
  8. 13. Country on the Iberian Peninsula (8)
  9. 18. Relating to a nation's fundamental laws (13)
  10. 19. Renaissance artist or Teenage Mutant Ninja Turtle (9)
  11. 21. Venue of Chilean Barman (3, 5)
  12. 24. Lady Charlotte's old pad (6, 6)
  13. 26. Wise wizard in Middle-earth (7)
  14. 27. Possession (8)
  15. 29. Legal Exams (inits.) (1, 1, 4)
  16. 31. Famous Irish bakery (8)
  17. 34. Lawbreaker (8)
  18. 36. A reliable watch (3, 6)
  19. 37. Subject of a particular poster (8)