Group 2 words only

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Across
  1. 2. delicious food
  2. 4. expensive
  3. 7. that action saved the day
  4. 8. so happy
  5. 11. saves the day
  6. 14. catch fish
  7. 15. wiped up the spill
  8. 17. is there no end to this
  9. 18. ...a field
  10. 20. central
  11. 21. blood pipes
Down
  1. 1. animal
  2. 3. not dry
  3. 5. ...of glass
  4. 6. not well
  5. 9. so fast
  6. 10. raid
  7. 12. rises
  8. 13. more wet
  9. 16. plenty
  10. 17. needs money
  11. 18. ow
  12. 19. look in mirror