Ova (4)
I believe the answer is:
eggs
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ova</span>' is the definition.<br/ ><span class="explanation-format__explanation">(egg is a kind of ovum)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for eggs that I've seen before include "Ovoid objects" , "Ova" , "Roe" , "Reproductive bodies" , "Chickens lay them" .)