Extreme adjectives and one silly question

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Across
  1. 1. This word means very, very tired
  2. 4. This word means very, very good
  3. 6. This word means very, very nice
  4. 8. This word means very, very old
  5. 9. This word means very, very hot
  6. 10. Donald Trump's favourite food. Hint - you can buy them at McDonalds
  7. 14. This word means very, very
  8. 15. This word also means very, very big (2)
  9. 17. This word means very, very bad
  10. 18. This word means very, very dirty
Down
  1. 2. This word means very, very happy
  2. 3. This word means very, very pretty
  3. 5. This word means very, very cold
  4. 7. This word means very, very
  5. 11. This word means very, very hungry
  6. 12. This word means very, very smart
  7. 13. This word means very, very big (1)
  8. 16. This word means very, very scary
  9. 17. This word means very, very small