Birthday Surprise

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Across
  1. 2. Everest, for one (8)
  2. 5. preposition (2)
  3. 6. cuddle close (7)
  4. 8. rub-a-dub-dub site (3)
  5. 10. bottom of chimney (9)
  6. 12. fall follower (6)
  7. 13. indoor footwear (8)
  8. 17. comfort, warmth, and relaxation (4)
  9. 18. low area between hills (6)
  10. 19. Angelou the poet (4)
  11. 20. hit one's highest point (4)
  12. 21. warm covering (7)
  13. 23. like chilli (3)
  14. 24. not just "a" (3)
  15. 28. mountain range, North (8)
  16. 30. warming drink (3, 9)
Down
  1. 1. heart of the district (8)
  2. 3. up on a map (5)
  3. 4. we (2)
  4. 7. fuzzy fruit (4)
  5. 9. falling flakes (4)
  6. 10. icy cold (6)
  7. 11. summer camp locale (4)
  8. 14. inside (2)
  9. 15. complement to earmuffs (5)
  10. 16. living outdoors (7)
  11. 22. common title beginning (3)
  12. 25. time off work (7)
  13. 26. barely; impartial (4)
  14. 27. area of a town/city (8)
  15. 29. a crowd, it's said (5)