Find each word with 'ur' sound

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Across
  1. 3. Kill someone on purpose
  2. 5. A sudden burst
  3. 6. Material to cover a window
  4. 8. A sea organism small, spiny and round
  5. 11. A thief
  6. 12. Tables, chairs, wardrobes
  7. 13. holds money
Down
  1. 1. A root vegetable
  2. 2. a heavy load
  3. 4. Talk quietly
  4. 6. not straight hair
  5. 7. Can’t be seen or heard clearly
  6. 9. cause pain or injury
  7. 10. Works in a hospital