Some golf bore, a bit bent (5-10)
I believe the answer is:
round-shouldered
'a bit bent' is the definition.
'round shouldered' can be an answer for 'bent' (I've seen this before). I'm not sure about the 'a bit' bit.
'some golf bore' is the wordplay.
'some golf' becomes 'round' (round is a kind of golf).
'bore' becomes 'shouldered' (shouldered can mean bore or carried).
'round'+'shouldered'='ROUND-SHOULDERED'
Can you help me to learn more?
(Other definitions for round-shouldered that I've seen before include "appearing to slump?" , "poor posture" , "With a curved upper back" .)