PUZZLE 37

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Across
  1. 2. Main ingredient of Japanese spirit Sake (4)
  2. 4. Name of Snickers bar in UK before 1990 (8)
  3. 6. Number of horses on each side for a polo match (4)
  4. 8. Contains the city of Nashville (9)
  5. 11. Capital city of New Zealand (10)
  6. 13. Represented by the chemical symbol "sn" in the periodic table (3)
  7. 14. City that hosted the 1936 Summer Olympic Games (6)
  8. 16. The number of Snow White's dwarfs (5)
  9. 17. Country believed to have the most motorways (5)
  10. 18. Green Lantern's nemesis (8)
Down
  1. 1. Thigh bone (5)
  2. 3. A type of pasta (5)
  3. 5. The name of Batman's butler (6)
  4. 6. Surname of scientist who discovered penicillin (7)
  5. 7. Home country of the Rijksmuseum (11)
  6. 8. Tempus (4)
  7. 9. Part of an atom with no electric charge (7)
  8. 10. Location of the cruciate ligament (4)
  9. 12. Fictional borough in Neighbours TV soap (12)
  10. 15. Smallest planet in the solar system (7)