Called to work before golf (4)
I believe the answer is:
rung
'called' is the definition.
(I've seen this before)
'work before golf' is the wordplay.
'work' becomes 'run' (both can mean to operate something).
'before' says to put letters next to each other.
'golf' becomes 'g' (phonetic alphabet: alpha, bravo, charlie etc.).
'run'+'g'='RUNG'
'to' is the link.
(Other definitions for rung that I've seen before include "Telephoned" , "spoke" , "support for foot" , "Step up the ladder - called for" , "Level in a hierarchy" .)