Part of an egg (4)

<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">part of an egg</span>' is the definition.<br/ ><span class="explanation-format__explanation">('yolk' is part of 'egg')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for yolk that I've seen before include "something attractive to soldiers?" , "Egg's "yellow"" , "Soldiers go in here" , "Yellow (as opposed to white?)" , "Yellow part of an egg" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">part of an egg</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 white that I've seen before include "Stainless" , "Bridal colour" , "Achromatic colour" , "Pallid" , "wine" .)