Wriggler is 40

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Across
  1. 2. She could be a hesitant graduate?
  2. 3. Knight's loss changes fortunate to family
  3. 6. Radio office worker?
  4. 8. Pool artist loses name to sport.
Down
  1. 1. Lack of victory turns Shute into a sibling.
  2. 4. Hemipteron sport?
  3. 5. What makes a cockney sheep deaf?
  4. 7. Beam where drug has replaced an unknown produces ma.