A street education

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Across
  1. 2. to allow liquid or gas escape
  2. 4. without money, food or home
  3. 9. wanting very much to do
  4. 10. useful, important or good enough to be a suitable reward for the money or time spent
  5. 11. actions or words intended to hurt people
  6. 13. the practice or principles of keeping yourself clean in order to maintain health
  7. 14. shocking and very bad
  8. 16. rich
  9. 17. surprising, teaching you new facts
Down
  1. 1. having or showing special advantage
  2. 3. a feeling of liking for a person or a place
  3. 5. a very poor and crowded area
  4. 6. temporary and of a low quality
  5. 7. difficult to do and causes a lot of worry
  6. 8. not connected with office or athourity
  7. 12. a very simple and small building made from wood
  8. 15. the ability to read and write