Free time after a lager is drunk (2,5)
I believe the answer is:
at large
'free' is the definition.
('at large' can be similar in meaning to 'free')
'time after a lager is drunk' is the wordplay.
'time' becomes 't'.
'after' means one lot of letters go next to another.
'is drunk' is an anagram indicator.
'lager' with letters rearranged gives 'large'.
't' put after 'a' is 'at'.
'at'+'large'='AT-LARGE'
(Other definitions for at large that I've seen before include "unbound" , "a wild animal may roam so" , "in the main" , "in a big way!" , "Free, not in captivity" .)