A pigeon for a poet? (5)
I believe the answer is:
homer
This clue is a double definition.
'a pigeon' is the first definition.
(homer is a kind of pigeon)
'a poet?' is the second definition.
(Homer is an example)
'for' acts as a link.
(Other definitions for homer that I've seen before include "Great Greek who was known to nod" , "The classical poet" , "returning flier" , "Racing pigeon?" , "Bird" .)