Many-legged creature (9)
I believe the answer is:
centipede
'many-legged creature' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for centipede that I've seen before include "Many-legged invertebrates" , "Invertebrate with many legs" , "Myriapod" , "Small carnivore" , "Creepy type" .)