Corona (7)
I believe the answer is:
aureole
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">corona</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for aureole that I've seen before include "Corona round sun/moon" , "Celestial crown or halo" , "Euro ale? (anag)" .)