Manage to get winning approach (3,2)
I believe the answer is:
run up
'approach' is the definition.
(run-up is a kind of approach)
'manage to get winning' is the wordplay.
'manage' becomes 'run' (I've seen this before**).
'to get' is a charade indicator (letters next to each other).
'winning' becomes 'up' (I've seen this in other clues).
'run'+'up'='RUN-UP'
(Other definitions for run up that I've seen before include "Approach -- preliminaries" , "Period of preparation" , "Raise the standard" , "Illingworth had a short one" , "Deliveryman's approach" .)