Corn units (4)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">corn units</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ears that I've seen before include "Locations for buds or studs?" , "Sear (anag.)" , "Sense organs" , "Auricles" , "Corn; organs" .)