Forming New Words

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Across
  1. 3. "Dorm" clipping
  2. 6. Rest in p.
  3. 10. Mt.
  4. 11. Not wearing shoes
  5. 13. Federal Bureau of Investigation
  6. 14. Mr.
  7. 16. Boulevard
  8. 19. "Vet" clipping
  9. 20. "Fridge" clipping
  10. 23. United N.
  11. 25. Smoke + Fog
  12. 26. Also known as
  13. 27. A tall building with many storeys
  14. 28. Self ____________ underwater breathing apparatus
Down
  1. 1. Apt.
  2. 2. Friend + enemy
  3. 4. Light amplification by stimulated emission of radiation
  4. 5. Clipping of "hippopotamus"
  5. 7. The day someone was born
  6. 8. Sheep + herder
  7. 9. A person who extinguishes fires
  8. 12. National Aeronautics and Space Administration
  9. 15. Sun Protection Factor
  10. 16. News + ____________
  11. 17. ____________ + mail
  12. 18. Sept.
  13. 21. How you type on a computer
  14. 22. You only live ____________
  15. 24. Clipping of "mayonnaise"