Female gonad (5)
I believe the answer is:
ovary
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">female gonad</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 ovary that I've seen before include "Egg producing organ" , "(Human) egg producer" , "Fem. reproductive organ" , "Female reproductive gland" , "egg supplier" .)