McKellen or McEwan (3)
I believe the answer is:
ian
'mckellen or mcewan' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ian that I've seen before include "- McEwan, Eng. writer" , "The familar Dr Paisley" , "Albert Beale's first name in EastEnders" , "- - Wallace (baritone)" , "Scottish man's name" .)