Affixes

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Across
  1. 2. music
  2. 3. rare
  3. 5. not normal
  4. 7. rear
Down
  1. 1. every 6 months
  2. 2. lessen
  3. 4. constant
  4. 5. plastic
  5. 6. circus clown vehicle
  6. 8. under water