Free hit to leg (3,2)
I believe the answer is:
let go
'free' is the definition.
(I've seen this in another clue)
'hit to leg' is the wordplay.
'hit' indicates anagramming the letters.
'to'+'leg'='toleg'
'toleg' anagrammed gives 'LET GO'.
(Other definitions for let go that I've seen before include "Give up" , "Release or permit to depart" , "Discuss no further - dismiss - release" , "Relax grip and release" , "Don't hold on" .)