Plow-pulling team (4)
I believe the answer is:
oxen
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">plow-pulling team</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for oxen that I've seen before include "Cows and bulls" , "Bovine mammals" , "Large bovine animals" , "Bovine animals, in yoke" , "strong animals" .)