FIRE: ZODIAC ELEMENT

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Across
  1. 3. - Fierce, intense fire
  2. 5. Black residue from burning
  3. 6. Deliberate fire-starter
  4. 8. Slightly burn or singe
  5. 12. Outdoor celebratory fire
  6. 16. Obsession with fire
  7. 17. Uncontrolled forest fire
  8. 19. - Glowing coal
  9. 20. Flammable material for starting fires
  10. 21. Burn slowly without flames
Down
  1. 1. Reduce to ashes by burning
  2. 2. Chemical reaction producing fire
  3. 4. - Residue after burning
  4. 7. - Fiery illumination
  5. 9. Small burned fragments
  6. 10. Damage by fire
  7. 11. - Fire's thermal energy
  8. 12. - Intense, large fire
  9. 13. Sudden burst of fire
  10. 14. Start a fire
  11. 15. - Tiny fiery particle
  12. 18. Set on fire