Foreperson or manager (4)
I believe the answer is:
boss
I believe this clue is a double definition.
'foreperson' is the first definition.
(I know that foreperson can be written as boss)
'manager' is the second definition.
(I've seen this before)
(Other definitions for boss that I've seen before include "Head honcho" , "Stud; chief" , "Stud; employer" , "Behave overbearingly" , "Leader; stud" .)