Hero of The Jungle Book (6)
I believe the answer is:
mowgli
'hero of the jungle book' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for mowgli that I've seen before include "boy reared by wolves" , "Kipling character" , "Jungle Book 'man-cub'" , "The Jungle Book hero" , "Jungle Book boy (Kipling)" .)