A revolutionary pose for an old story-teller (5)

I believe the answer is:
aesop
'old story-teller' is the definition.
'aesop' can be an answer for 'story-teller' (I've seen this before). I'm unsure of the 'old' bit.
'a revolutionary pose for an' is the wordplay.
'a revolutionary' says the letters should be written in reverse (letters revolve around).
'for' says to put letters next to each other (I've seen this in other clues).
'an' becomes 'a'.
'pose' in reverse letter order is 'esop'.
'esop' put after 'a' is 'AESOP'.
Can you help me to learn more?
(Other definitions for aesop that I've seen before include "Classic fable writer" , "Author of many fables" , "Fabulous man" , "Greek fabulist (Tortoise and the Hare)" , "very old writer" .)
