words puzzle

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Across
  1. 2. To serve or function in a particular role (3 letters)
  2. 6. Completely, without any doubt (9 letters)
  3. 7. To become healthy or whole again (4 letters)
  4. 8. Providing encouragement or emotional help (9 letters)
  5. 11. The state of being protected from harm or danger (8 letters)
  6. 12. The period during which a war is taking place (7 letters)
  7. 13. A general description or plan showing the main features (7 letters)
Down
  1. 1. A reason for doing something (6 letters)
  2. 3. An aim or desired result (4 letters)
  3. 4. To express dissatisfaction or annoyance about something (8 letters)
  4. 5. To annoy someone repeatedly (6 letters)
  5. 9. To run or move quickly (4 letters)
  6. 10. A method or way of doing something skillfully (8 letters)