Extract from reggae's oppressed storyteller (5)
I believe the answer is:
aesop
'storyteller' is the definition.
(I know that Aesop is a fabulist)
'extract from reggae's oppressed' is the wordplay.
'extract from' says the answer is hidden in the clue (some letters extracted from the clue).
'AESOP' is hidden within 'reggaes oppressed'.
(Other definitions for aesop that I've seen before include "Author of many fables" , "Greek author, famous for his fables" , "Greek storyteller" , "his writings were fabulous" , "fabulous figure?" .)