Spelling week 7

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Across
  1. 5. Shake of the ground
  2. 8. Gain knowledge
  3. 10. Getting paid
  4. 12. Bright moving light
  5. 13. Wriggly garden helper
  6. 14. Listened secretly
  7. 16. Shiny gem from an oyster
  8. 17. Before the usual time
Down
  1. 1. Look carefully for
  2. 2. Want deeply
  3. 3. Our planet
  4. 4. A lack of something
  5. 6. Listened to something
  6. 7. Serious and sincere
  7. 9. Person who studies things
  8. 10. Get money for work
  9. 11. Practise for a show
  10. 15. Car that carries a coffin