multilevel

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Across
  1. 3. To be full of
  2. 4. Internet idea
  3. 7. Grind grain into flour
  4. 10. Part of the pelvic bone - what Helen of Troy might name a new element?
  5. 12. Many-tiered
  6. 13. ____ me in St. Louis, Louis …
  7. 15. Could you please ____ the TV? I’m on the phone!
  8. 16. Free-for-all
  9. 17. Key __ pie
  10. 18. Soft human membrane
  11. 20. Catcher’s equipment
Down
  1. 1. Give off
  2. 2. Lowest part of small intestine, not to be confused with upper pelvic bone
  3. 5. Let me ____, or think over, that plan before I answer you
  4. 6. Business at the front, party at the back
  5. 7. Alternative to donkey
  6. 8. You can’t have any more
  7. 9. Good when it’s grilled cheese, bad when it’s an iceberg
  8. 10. The next ____ on the agenda is new business
  9. 11. Denver is the ‘____ high city
  10. 13. Small pest
  11. 14. Exam’s over! Put your pencils down
  12. 16. Little bits of cereal grain
  13. 19. Mongrel
  14. 20. Clown whose actions speak louder than words