4th one

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Across
  1. 4. - Sweet, red berry
  2. 6. - Bright and cheery garden bloom
  3. 7. - Coastal beacon for ships
  4. 8. - Eye protection from the sun
  5. 10. - Sweet cacao-based treat
  6. 11. - Puzzle with interlocking pieces
  7. 13. - Transparent paint technique
  8. 14. - Agile flying insect
  9. 16. - Water safety supervisor
  10. 19. - Rotary-wing aircraft
  11. 20. - Arrangement of flowers
Down
  1. 1. - Butterfly's early stage
  2. 2. - Nighttime celestial glow
  3. 3. - Post-wedding getaway
  4. 5. - Exciting journey or quest
  5. 9. - Unique ice crystal
  6. 12. - Natural cascading wonder
  7. 15. - Bravery in battling blazes
  8. 17. - Tropical, spiky fruit
  9. 18. - Play area for children