Angel topper (4)
I believe the answer is:
halo
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">angel 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 "Symbol of sainthood" , "Circle of light round the sun or moon" , "Ring of saintliness" , "Circle of light around the moon" , "Ring of light round head" .)