Angel's topper
I believe the answer is:
halo
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">angel's 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 halo that I've seen before include "Glittering aura" , "Sign of holiness" , "Aureole" , "Imaginary circle over saint's head" , "Corona" .)