Comic ____ Martin (5)
I believe the answer is:
steve
'comic martin' 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 "- McQueen, US actor" , "-- Jobs, Apple founder" , "Stephen (abbrev.)" , "Chap" , "Sir - - Redgrave (oarsman)" .)