Middle ear? (3)
I believe the answer is:
cob
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">middle ear?</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 cob that I've seen before include "A loaf; a nut; a horse" , "Horse, male swan and loaf of bread" , "mount" , "Hazelnut" , "mixture of clay and straw" .)