Guide a bullock (5)

I believe the answer is:

steer

I believe this is a double definition.

'guide' is the first definition.
(synonyms)

'a bullock' is the second definition.
(synonyms)

(Other definitions for steer that I've seen before include "cow!" , "piece of advice" , "Direct; young ox" , "Direct, fix course" , "Con" .)

I've seen this clue in The Mirror and The Daily Express.

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