How Humorous!

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Across
  1. 4. "Main character" of George Orwell's novel which isn't 1984
  2. 6. Ancient system of medicine that actually thought the starred clues made up all human beings, and made them up alone
  3. 8. *Liquid which is not blue
  4. 9. Capital of South Dakota
  5. 11. *Yellow bodily fluid which is not urine
  6. 12. Fruit?
  7. 13. *Perhaps a synonym of melancholy. If so... I guess it's alright?
Down
  1. 1. *The worst part of a sore throat :(
  2. 2. 1+1=?
  3. 3. Drink this or else you die due to it being a vital element of life
  4. 5. C, in NATO phonetic alphabet
  5. 7. ruling or dominant in a political or social context
  6. 10. Sheep who is not a ram
  7. 13. Opposite of the first crossword word