Grothendiek

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Across
  1. 1. May cause indigestion
  2. 3. excitement awaits via contact
  3. 5. need passport to enter; groth owns one
  4. 6. Sometimes needs a good knock
  5. 8. real thick one
  6. 9. Same type supposedly but Husky
  7. 11. Oreo like, with a twist
  8. 13. most visited; not US
  9. 15. Like Daffodil but silly?
  10. 16. may require voice activated fixing
Down
  1. 2. Invented modern algebraic geometry; namesake
  2. 4. Dogs if cows were to talk about them
  3. 7. nightly; keeps the fangs shiny
  4. 10. just a boop; parlor trick
  5. 12. a witch! a childhood witch!
  6. 14. Plug your nose!