You simply can't do this to the poor fellow (10)
I believe the answer is:
impoverish
I'm afraid I can't explain this answer.
Can you help me to learn more?
(Other definitions for impoverish that I've seen before include "Make poor" , "beggar" , "Spoil the quality of" .)
I've seen this clue in The Globe and Mail.
Want a hint initially instead of a full solution?
Install my app