Cowboy rope (5)
I believe the answer is:
lasso
'cowboy rope' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lasso that I've seen before include "Cattle-catching rope" , "Rope for catching livestock" , "One may be caught by this" , "Nosed rope" , "A cowboy's rope with a running noose" .)