Opposites

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Across
  1. 5. Very smart
  2. 6. An unattractive appearance
  3. 8. Something you ask when you need to know something
  4. 10. To have no use
Down
  1. 1. To have many uses
  2. 2. Unable to call something to mind
  3. 3. A very attractive appearance
  4. 4. Not smart
  5. 7. To call something to mind
  6. 9. A reply to a question