Royal map cryptogram, part I

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Across
  1. 3. Unnecessarily complicated ice. (6,5)
  2. 4. A floral place of perpetual fire. (5,4)
  3. 6. Reversing electricity. (11,7)
  4. 7. Miraculously turned into wine. (12)
  5. 9. Respectful skyscraper. (6,5)
  6. 11. PET bottle on fire. (5,7)
  7. 13. Two shots over par, good game. (6,6)
  8. 14. An attractive mutant. (7)
  9. 17. Backvvards. (10)
  10. 18. Ducts covered in glue. (6,5)
  11. 20. Everything moves except traffic. (4,4)
  12. 23. A queen's small mat for her cup of tea. (5,7)
  13. 25. Slung out of an avenue. (4,5)
  14. 26. I can't find my pillar. (4,7)
  15. 28. Transformed tubes. (7,5)
  16. 29. Hissing in a hole. (10)
  17. 31. Always a decisive map. (6)
  18. 33. Honestly without cheating. (4,3,6)
Down
  1. 1. Swords of a king. (3,5,6)
  2. 2. Carefully consider your spelling. (8)
  3. 5. Endlessly estimating intermediate values. (13,7)
  4. 8. Missing alpinism. (15)
  5. 10. Surrounding everything. (6,2)
  6. 12. Synonymous and homonymous to indestructible. (11)
  7. 15. A thing out of this world. (7,9)
  8. 16. Messy reactors. (10)
  9. 19. Uninterrupted sideways water. (14)
  10. 21. It can only go up after this. (8)
  11. 22. Struck an engine part. (6,5)
  12. 24. Neither solid nor liquid. (6)
  13. 27. Not before changing direction. (5,4)
  14. 30. Calm but salty waters. (6,3)
  15. 32. Don't think outside of it. (2,3,3)