Guide bullock (5)

I believe the answer is:

steer

This clue is a double definition.

'guide' is the first definition.
(synonyms)

'bullock' is the second definition.
(synonyms)

(Other definitions for steer that I've seen before include "Exercise control" , "Guide (a ship, car, etc)" , "Cattle - drive" , "Guide, direct" , "Direct movement" .)

I've seen this clue in The Mirror and The Guardian.

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