He told us the old, old stories! (5)
I believe the answer is:
aesop
'he told us the old old stories' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
This is the entire clue.
Can you help me to learn more?
(Other definitions for aesop that I've seen before include "A pose by Greek writer of fables" , "Classic fable writer" , "story teller" , "fabulous figure?" , "his writings were fabulous" .)