Poe's middle name (5)
I believe the answer is:
allan
'poe's middle name' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for allan that I've seen before include "Man's name" , "Man" , "-- Quartermain (Rider Haggard)" , "Edgar ____ Poe, poet and short story writer (1809-49)" .)