CPE crossword puzzle

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Across
  1. 4. Environmental advocates
  2. 6. Smooth and continuous
  3. 8. Playful trickster
  4. 9. Desired eagerly
  5. 10. Easily breakable
  6. 13. Not strict; permissive
  7. 14. Up to this point
  8. 15. Utterly absurd
  9. 16. Random and disorganized
Down
  1. 1. Nurture and encourage
  2. 2. Countless; a multitude
  3. 3. Retract; pull back
  4. 5. Reveal; make known
  5. 7. Dull; uninspiring
  6. 11. Scattered remains
  7. 12. Impede; obstruct
  8. 15. A roost for a bird