Quote from a comic item (4)
I believe the answer is:
cite
'quote' is the definition.
(I know that quote is a kind of cite)
'from a comic item' is the wordplay.
'from' indicates the answer is hidden within the clue.
'CITE' is hidden within 'comic item'.
(Other definitions for cite that I've seen before include "Mention as example or quote" , "name" , "Quote or refer to" , "Adduce as proof" , "Summons - quote" .)