Steal cattle (6)
I believe the answer is:
rustle
'steal cattle' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for rustle that I've seen before include "The sound of leaves in the wind" , "Swish - lustre (anag)" , "Steal stock" , "Make sound as of paper crumpling - or steal cattle" , "Steal cattle in the old West" .)