Ram's mate (3)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ram's mate</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 ewe that I've seen before include "Partner to ram" , "Sheep found in sewer" , "Female ovine" , "Female on farm" , "Language" .)