nearly unsolvable

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Across
  1. 4. 1989
  2. 7. here come __
  3. 8. a guy that likes money
  4. 9. tune used for many German clocks
  5. 10. literary dinosaur
  6. 14. wears an eyepatch, isn't a pirate (free for William)
  7. 15. flavor of a toucan's cereal
  8. 16. non-pagan percussion
  9. 17. up
  10. 18. die Anzahl der Augen, die ein Tier namens Hufeisenkrabbe hat
  11. 19. Big Texas?
Down
  1. 1. & but longer
  2. 2. a match may not be able to box, but what can?
  3. 3. a dude, a lake, a country
  4. 5. contains x,y, and z but is the longer word
  5. 6. Curiously strong ****
  6. 11. name of Adam's cat
  7. 12. 3rd month in autumn according to a prominent figure in the French revolution
  8. 13. contains 86 calories per 100 grams
  9. 18. buttload in liters