Spoke of work and golf (4)
I believe the answer is:
rung
'spoke' is the definition.
(synonyms)
'work and golf' is the wordplay.
'work' becomes 'run' (both can mean to operate something).
'and' means one lot of letters go next to another.
'golf' becomes 'g' (phonetic alphabet: alpha, bravo, charlie etc.).
'run'+'g'='RUNG'
'of' is the link.
(Other definitions for rung that I've seen before include "Part of a ladder" , "Ladder's step" , "Level in a hierarchy" , "spoke" , "support for foot" .)