Suffix and prefix that ands with ~tion and ~ing and clipped words

123456789101112
Across
  1. 5. advertisement
  2. 6. puzzling
  3. 7. document
  4. 9. going out
  5. 10. register
  6. 12. vegetables
Down
  1. 1. eating or drinking
  2. 2. careful
  3. 3. worrying
  4. 4. care for someone
  5. 8. teacher
  6. 11. identification