<ear> that sounds like /er/

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Across
  1. 2. – the planet we live on
  2. 5. – a small worm that lives in soil
  3. 6. – to get money for work
  4. 8. – to practise before a show
  5. 9. – a strong, bright light for looking
  6. 12. – to look for something
  7. 13. – not enough of something
  8. 14. – money you make from working
  9. 15. – before the usual time
  10. 17. – a car that carries a coffin
Down
  1. 1. – someone who studies and finds out facts
  2. 3. – heard something by accident
  3. 4. – a round gem from an oyster
  4. 5. – very serious or honest
  5. 7. – shaking of the ground
  6. 10. – listened to something
  7. 11. – to really want something
  8. 16. – to find out new things