"The Tell-Tale Heart" author (3)
I believe the answer is:
poe
'the tell-tale heart author' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for poe that I've seen before include "The Raven poet" , "Edgar Allan --, US poet and author" , "Edgar Allan . . ., American writer of creepy stories" , "Edgar Allan ..., American writer of the macabre" , "He wrote short stories" .)