Exhibiting an unworldly delicacy or beauty (8)

I believe the answer is:

ethereal

(Other definitions for ethereal that I've seen before include "There in lea - it looks delicate" , "Extremely delicate and light; otherworldly" , "Heavenly - fairy-like" , "'Fairy-like, delicate (8)'" , "Airy or supernatural" .)

I've seen this clue in The Times.

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