Choose not to upset couch potato who's got rid of coach (3,3)
I believe the answer is:
opt out
'choose not' is the definition.
(to opt out of something is to choose not to do it)
'to upset couch potato who's got rid of coach' is the wordplay.
I cannot really understand how this works, but
'to' is present in the answer.
'couch' could be 'put' (synonyms) and 'put' is found within the leftover letters.
'of' could be 'o' and 'o' is found within the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for opt out that I've seen before include "'Choose not to take part (3,3)'" , "Decide to withdraw" , "Decline to participate" , "Choose to be excluded" , "Choose not to do something" .)