Words with silent letters

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Across
  1. 3. Season after summer
  2. 4. Land surrounded by water
  3. 8. ...of Wight. Where Amanda lives
  4. 9. Explosive
  5. 10. Prickly flower
Down
  1. 1. Upright pillar
  2. 2. Justin Chase's Dog's name
  3. 5. Mary had a little one of these
  4. 6. Feel uncertain
  5. 7. A referee uses one