Anti and auto crossword

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Across
  1. 4. not social
  2. 5. works by itself
  3. 8. a medicine that destroys viruses
  4. 9. someone signs their name
  5. 11. a device that flies a plane
Down
  1. 1. something that cleans something to stop it getting infected
  2. 2. a book about a person written by that person
  3. 3. a car
  4. 4. works against ice
  5. 6. something that works against a poison
  6. 7. stops the spread of bacteria
  7. 10. something that shows a television presenters script