Carell of "The Office" (5)
I believe the answer is:
steve
'carell of the office' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for steve that I've seen before include "- - Wright (R2)" , "-- Jobs, Apple founder" , "Chap" , "- - Harmison (bowler)" , "Sir - - Redgrave (oarsman)" .)