Bullocks (6)
I believe the answer is:
steers
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bullocks</span>' is the definition.<br/ ><span class="explanation-format__explanation">('steer' can be a synonym of 'bullock')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for steers that I've seen before include "Guides a ship or car" , "Castrated oxen" , "Guides or pilots" , "Castrated bulls" , "Guides direction of, ship or plane" .)