SET 9-11 March

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Across
  1. 1. more than one axis
  2. 4. TV or radio ad(vert)(isement)
  3. 7. lumbago (3)
  4. 9. break the fibers of (a flexible item)
  5. 10. use hearing with intention
  6. 12. causing pain
  7. 13. functions poorly or not at all (2)
  8. 18. built in a plane behind/below another
  9. 20. move along a surface with little friction
  10. 21. the quality of being deep
  11. 22. divertirse (4)
Down
  1. 2. mutually between items/people (2)
  2. 3. like clouds on the ground
  3. 5. sound arriving to your ears
  4. 6. change between few options
  5. 8. remove motor traffic on a street
  6. 11. use, making poor/careless use of resources
  7. 14. the outer fringe (of a city)
  8. 15. brother's son
  9. 16. detained by the police
  10. 17. smooth animal skin
  11. 19. intense light focused tightly