The prefix “ist”

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Across
  1. 2. someone who plays guitar
  2. 3. someone who sells flowers
  3. 6. someone who looks after animals
  4. 8. someone who’s a pro at motorcycling
  5. 9. someone that looks after teeth
  6. 10. someone who sells medical stuff
Down
  1. 1. someone that does paintings
  2. 4. someone who does science
  3. 5. someone who studies biology
  4. 7. someone who studies geology