Cupcake topper (5)
I believe the answer is:
icing
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cupcake topper</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 icing that I've seen before include "Sweet thing" , "Maybe Madeira's topping" , "Sugar-coating" , "Sugar coating as cake decoration" , "Frosty coating" .)