Drives cattle (6)
I believe the answer is:
steers
I believe this is a double definition.
'drives' is the first definition.
(I've seen this before)
'cattle' is the second definition.
(I've seen this in another clue)
(Other definitions for steers that I've seen before include "Guides or pilots" , "Resets (anag.)" , "Guides or directs, ship or plane" , "Castrated oxen" , "Guides the bullocks" .)