Labyrinth creature (8)
I believe the answer is:
minotaur
'labyrinth creature' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for minotaur that I've seen before include "Monster in a maze with the head of a bull and the body of a man" , "Mythical creature" , "In Greek myth, the bull-man monster slain by Theseus in the labyrinth in Crete" , "Labyrinth monster killed by Theseus" , "Mythological man-bull" .)