Emma needed help

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Across
  1. 4. moderately sharp to the taste
  2. 6. cat down, under
  3. 10. specialist in teeth
  4. 11. sour, bitter, sharp, harsh
  5. 12. learning process
  6. 15. in the direction of
  7. 17. a message sent by reflecting sunlight in flashes from a movable mirror
  8. 18. a doctor who specializes in skin problems
  9. 19. sun
Down
  1. 1. relating to the soul or mind
  2. 2. teeth
  3. 3. A going down; decline in health
  4. 5. middle
  5. 7. a person engaged or wise in philosophy, especially as an academic discipline
  6. 8. in the middle of two structures
  7. 9. mind, soul, spirit
  8. 12. learn, know
  9. 13. wise
  10. 14. in the direction of
  11. 16. skin