Projection manager? (4)
I believe the answer is:
boss
This clue is a double definition.
'projection' is the first definition.
(I know that boss is a type of projection)
'manager?' is the second definition.
(I've seen this in another clue)
(Other definitions for boss that I've seen before include "One in charge; stud" , "Team manager" , "Person in charge - raised knob" , "Manager (colloq.); stud" , "Control" .)