Angelic symbol (4)
I believe the answer is:
halo
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">angelic symbol</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for halo that I've seen before include "Circle over a saint" , "Aureole" , "Ring of light round head" , "Nimbus" , "Circle of (holy) light" .)