A Crossword of Words

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Across
  1. 2. A person who is mean usually due to personal problems, and needs to be treated with utmost kindness.
  2. 3. a lid; a hat
  3. 5. A greeting usually used by kids
  4. 6. Flying mammal
  5. 8. Man's best friend
  6. 9. something a Greek official would wear
  7. 10. "Once ______ a time"
Down
  1. 1. Has a trunk
  2. 3. Likes to chase mice
  3. 4. Large marsupial
  4. 7. "a long time ____"