Saintly glow (4)
I believe the answer is:
halo
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">saintly glow</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 "Hagiological aura featured in Christian art" , "Disc of light" , "Glowing ring (around saint's head)" , "Aura representing saintliness" , "Crown" .)