among the hidden 3?

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Across
  1. 4. complete and total destruction
  2. 5. feeling or appearing casually calm and relaxed
  3. 8. giving the impression that something bad or unpleasant is going to happen
  4. 11. the policy of deliberately killing a large group of people
  5. 12. an extreme shortage of food
Down
  1. 1. in casual manner
  2. 2. info used to promote or publicize a particular cause or point of view
  3. 3. gain access to gradually to acquire secret info
  4. 6. having achieved victory or success
  5. 7. to spoil by poor work
  6. 9. difficult to understand or follow because or closely packed with complex ideas
  7. 10. a twisted expression on a person's face