Guide a young ox (5)
I believe the answer is:
steer
I believe this is a double definition.
'guide' is the first definition.
(I know that guide can be written as steer)
'a young ox' is the second definition.
(I've seen this in another clue)
(Other definitions for steer that I've seen before include "beef producer" , "cox" , "Guide - castrated ox" , "Direct movement" , "Guide (eg, a ship)" .)