Forming new nouns

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Across
  1. 2. a person's voice, that is unchanging and without intonation
  2. 5. a person living in an institution such as a prison or hospital
  3. 6. failing to cope with the demands of a normal social environment
  4. 8. a joint defendant
  5. 10. matter consisting of the antiparticles of normal matter.
  6. 12. the agreement or cooperation of two opposing political parties
Down
  1. 1. a software system for cross-referencing between text and graphics
  2. 3. the incorrect position of something in relation to something else
  3. 4. an attack made in response to one by an opponent
  4. 7. a signature, especially that of a celebrity written as a memento
  5. 9. the way in which two or more things have an effect on each other
  6. 11. uncertainty or lack of confidence in oneself