I have to open some booze to concede defeat (4,2)
I believe the answer is:
Here is my best explanation:
'concede defeat' is the definition.
I can't tell whether this defines the answer.
'i have to open some booze' is the wordplay.
'i have' becomes 'ive'.
'to open' is an insertion indicator (some letters create an opening in a word).
'some booze' becomes 'gin' (gin is a kind of booze).
'ive' put inside 'gin' is 'GIVE IN'.
'to' acts as a link.