Supernatural glow (4)
I believe the answer is:
aura
'supernatural glow' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for aura that I've seen before include "Vibe" , "Distinctive atmosphere surrounding person or thing" , "Distinctive quality around a person or place" , "Atmosphere [ital]" , "Intangible atmosphere" .)