Celebratory

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Across
  1. 1. Like some milk
  2. 3. Lower the temp
  3. 5. A week off in American Football
  4. 8. One who sells houses, e.g.
  5. 10. Like some priests
  6. 12. Without clear definition
  7. 14. Stomach muscles
  8. 16. Add length
  9. 17. A poorly constructed treehouse, eg.
Down
  1. 2. Sick
  2. 3. Like some big name actors
  3. 4. The loneliest number
  4. 6. Like some dinners
  5. 7. "Yay" in Mexico!
  6. 9. For dipping in ink?
  7. 11. Tried to get elected
  8. 13. After a tick
  9. 15. Nifty