Light and sound

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Across
  1. 4. Transport
  2. 5. you press them at peoples house
  3. 9. police car make them
  4. 10. people walk across
Down
  1. 1. Cars have them
  2. 2. Clapping for people
  3. 3. Night
  4. 6. Closed
  5. 7. Transport
  6. 8. Lots of cars