The man of the crowd

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Across
  1. 3. , to form a theory
  2. 4. , to walk or move aimlessly
  3. 7. , to identify the presence of someone or something
  4. 8. , the story teller
  5. 12. , a state of curiosity
  6. 13. , a thief or bad person
  7. 15. , someone who is sick is...
Down
  1. 1. , someone who bets there money is a...
  2. 2. , a person inclined to keep to themselves
  3. 5. , notice taken by someone or something
  4. 6. , to not think clearly
  5. 9. , the chest area
  6. 10. , very detailed
  7. 11. , someone who stalks is...
  8. 14. , an elderly person