How Puzzling

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Across
  1. 5. The best newspaper ever
  2. 6. Worst enemies, therefore
  3. 10. The very worst class
  4. 11. A civil engineer's worst enemy
  5. 12. Quatarian event
  6. 14. The objectively worst color
  7. 16. I don't know what's in my _____
  8. 17. The evil tyrant
  9. 19. The second best crossword
Down
  1. 1. An architect's worst enemy
  2. 2. Yummy dessert
  3. 3. Contents of a bag, perhaps?
  4. 4. The sounds of the object of Camden's desire
  5. 7. The male offspring of Sir Clement
  6. 8. The third best crossword
  7. 9. The greatest of allllll university ginger ales
  8. 12. Any argument against morning Starbucks, or HF
  9. 13. What I've decided I am with writing this crossword for 10 minutes
  10. 15. Whose business is it?
  11. 18. The idea of a round earth