Lord of the jungle (6)
I believe the answer is:
tarzan
'lord of the jungle' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for tarzan that I've seen before include "Apeman of fiction" , "Lord of the Jungle" , "Edgar Rice Burroughs's man of the jungle" , "Fiction's Lord of the Apes" , "E. R. Burroughs' hero" .)