Tree tamed after cutting canopy, sorry (7)
I believe the answer is:
ashamed
'sorry' is the definition.
(ashamed can mean sorry or remorseful)
'tree tamed after cutting canopy' is the wordplay.
I cannot really understand how this works, but
'tree' could be 'ash' (ash is a kind of tree) and 'ash' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for ashamed that I've seen before include "Sorry" , "'Embarrassed, guilty (7)'" , "Chagrined" , "Discomfited" , "Overcome by remorse or guilt" .)