Fellows hanging on to a cowboy's legs? (5)
I believe the answer is:
chaps
'fellows' is the definition.
('chap' can be a synonym of 'fellow')
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for chaps that I've seen before include "Blokes" , "Cowboy leggings" , "Men; leather trousers" , "Guy's" , "People" .)