Mixed cooler wine (7)
I believe the answer is:
stirred
'mixed' is the definition.
(I've seen this before)
'cooler wine' is the wordplay.
'cooler' becomes 'stir' (both are slang terms for prison).
'wine' becomes 'red' (red wine is a kind of wine).
'stir'+'red'='STIRRED'
(Other definitions for stirred that I've seen before include "Moved slightly" , "Emotionally stimulated" , "Aroused; agitated" , "Excited" , "Agitated with a circular motion" .)