The Shwa was here!

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Across
  1. 5. Gives Shwa an explanation
  2. 6. Blind
  3. 7. plastic
  4. 8. friends with the Shwa
Down
  1. 1. number of dogs
  2. 2. disappeared
  3. 3. with Shwa's face
  4. 4. in a wheelchair
  5. 9. sort of invisible