Sign of affection
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sign of affection</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 kiss that I've seen before include "Neck - peck" , "lightness of touch?" , "Touching of lips" , "Act of osculation" , "drop of wax" .)