Puzzle #54

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Across
  1. 3. A situation in which people lie in wait to make a surprise attack.
  2. 4. On or into a ship, aircraft, train, or other vehicles.
  3. 6. A sound, especially one that is loud or unpleasant or that causes disturbance.
  4. 7. Morose, bad-tempered, and resentful; refusing to be cooperative or cheerful.
  5. 9. A small patch of something.
  6. 11. An anxious awareness of danger.
Down
  1. 1. Far down or in.
  2. 2. Act dishonestly or unfairly in order to gain an advantage.
  3. 3. An inclination towards a particular characteristic or type of behavior.
  4. 5. The branch of mathematics deals with the properties and manipulation of numbers.
  5. 8. The belief in or pursuit of a state in which everything is perfect is typically regarded as unrealistic or idealistic.
  6. 10. Have formal dealings or discussions; negotiate.