Mystic's reading material (4)

I believe the answer is:

aura

(Other definitions for aura that I've seen before include "Particular ambience" , "Perception of distinctive personality" , "'Air, atmosphere (4)'" , "Intangible quality surrounding a person or thing" , "Nimbus" .)

I've seen this clue in the Newsday.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.