Aesop's output (6)
I believe the answer is:
fables
'aesop's output' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for fables that I've seen before include "Aesop wrote a lot of them" , "Myths and legends" , "Stories as told by Aesop" , "Aesop wrote many of them" , "Tall tales like Aesop's" .)