Christmas!

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Across
  1. 4. It says to record Pagan tradition
  2. 6. Vegetarian option - foul, endless, confused with tea
  3. 9. To finish, trim and mash a dingy spud
  4. 11. Skull obtusely cuts out heart of paste
  5. 12. (first on his list)
  6. 16. Saucy barren cry
  7. 17. Can't tape rumpled wrapper
  8. 18. To make a tree using hippo livers
  9. 19. (fifth on his list)
  10. 20. Platonic love may contain spice
  11. 21. In a Nonsequitur, keyboardist finds the bird
  12. 22. Appointments confused instead
  13. 23. (second on his list)
Down
  1. 1. Best place to hide a stopgap lumber
  2. 2. Wobbly start to jealously long lyric
  3. 3. (sixth on his list)
  4. 5. Not much, just a messy filter
  5. 7. (the most important thing on the list)
  6. 8. (third on his list)
  7. 10. Bonus sparks a thousand noisy dancers
  8. 13. Pour tea out of broken spout for starters
  9. 14. Inkspot a tough way to hide carbs
  10. 15. (fourth on his list