Smart spelling

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Across
  1. 5. Hearing specialist
  2. 6. A doctor who focuses on one area
  3. 7. shop where you buy medicine and stuff
  4. 8. Someone who knows biology
Down
  1. 1. Someone who rides a motorbike
  2. 2. A singer
  3. 3. someone who studies rocks
  4. 4. A person skilled in a type of therapy