Treasure Box Quest - Clues

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Across
  1. 5. : best in daylight
  2. 8. : Pyrimidine cytosine's purine
  3. 9. : No better support
  4. 10. : Pay to upgrade?
  5. 11. : box
  6. 13. : Knows the keyword
  7. 15. : Corners
  8. 16. : A _______ cipher
  9. 19. : Sugar ____ fairy
Down
  1. 1. : Where ends with ____
  2. 2. : Where starts with a base ____
  3. 3. : Great month for the botanical garden
  4. 4. : A for Adenine
  5. 6. : Dirk can illuminate us
  6. 7. : Easy Peasy _____ Sweezy is wrong
  7. 12. : Log __ for pun
  8. 14. : gramana
  9. 17. : Keyword for the ___
  10. 18. : Fun with GPS and ___