Being free for a spree (5)
I believe the answer is:
binge
'for a spree' is the definition.
(I've seen this before)
'being free' is the wordplay.
'free' indicates an anagram.
'being' with letters rearranged gives 'BINGE'.
(Other definitions for binge that I've seen before include "Occasion for excessive eating or drinking" , "Wild spree" , "Drink excessively" , "A drinking bout" , "Self-indulgent session" .)