Word on a candy heart
I believe the answer is:
luv
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">word on a candy heart</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 luv that I've seen before include "Term of endearment" , "show affection informally" .)