What do you do?

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Across
  1. 3. who fights fire
  2. 5. who treats patients
  3. 7. who brings our mail
  4. 9. who makes clothes
  5. 10. who takes care of teeth
  6. 11. who cuts hair
  7. 12. who cooks in a restaurant
  8. 13. who drives a bus
Down
  1. 1. who serves food in a restaurant
  2. 2. who sings songs
  3. 4. who studies at school
  4. 6. who teaches students at school
  5. 7. officer who fights crime
  6. 8. who looks after sick people
  7. 11. who makes bread