Ruby?

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Across
  1. 1. Ice, water, steam (6)
  2. 4. killing with ______ (8)
  3. 5. mysterious airborne projectile (3)
  4. 6. tried(9)
  5. 12. Furious (8)
  6. 14. Formation of stars (13)
  7. 16. where the sky meets the sea (7)
  8. 17. Computer Boolean language (6)
  9. 18. External (5)
  10. 19. SOS beacon (5)
  11. 20. Tasks usually set in order (12)
  12. 22. the day after tomorrow (10)
  13. 23. Jumbled Clambers (8)
  14. 24. the product of two stars colliding (9)
Down
  1. 2. Rotary converge (10)
  2. 3. Heavenly figure treads upon (7)
  3. 7. Meaning (10)
  4. 8. Skyward travel (9)
  5. 9. Causing a disturbance (7)
  6. 10. phone home (16)
  7. 11. Camouflage (9)
  8. 13. Anti-Clockwise winds (7)
  9. 15. measurements, salad is in demons (5)
  10. 20. Gulf of Mexico, ____ zone (5)
  11. 21. Hidden meaning (7)