Succeed by way of good advice for golfers (6,7)
I believe the answer is:
follow through
'good advice for golfers' is the definition.
I can't judge whether this definition defines the answer.
'succeed by way of' is the wordplay.
'succeed' becomes 'follow' (synonyms).
'by way of' becomes 'through' (I've seen this before).
'follow'+'through'='FOLLOW-THROUGH'
Can you help me to learn more?
(Other definitions for follow through that I've seen before include "Continue to its conclusion" , "Part of stroke after ball has been hit" , "Implement" , "Take (an aim) to its conclusion" , "Continuation of a stroke after the ball is hit" .)