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Across
  1. 1. Two-wheeled invention a precursor to the auto
  2. 7. Solar, for one, with planets in tow
  3. 8. International police organisation
  4. 9. Where one might see a cherry's start or its end
  5. 13. Elemental necessity in the Dead Sea's buoyancy
  6. 14. Yellow in NYC; black in London
  7. 15. Days named for Saturn and the Sun historically
  8. 16. Often secret sometimes with a smile
  9. 18. Prefix with "code" in addressing letters
  10. 21. Vivid fluorescent colours
Down
  1. 2. Sea-going luxury often found in Monaco's harbor
  2. 3. A mythical creature that subsists by feeding on the vital essence of the living.
  3. 4. Metropolitan hub of culture and commerce
  4. 5. Georgia's pride, fuzz and all
  5. 6. Former name of a major city in India
  6. 10. an attractive or endearing person or animal
  7. 11. Freshwater body larger than a pond
  8. 12. The ultimate end
  9. 17. Group of people with a common interest or venue for music and dancing
  10. 19. liquid-crystal display
  11. 20. vibrations that travel through the air and can be heard when they reach the ear