Insubstantial, almost not of this world (8)

I believe the answer is:

ethereal

(Other definitions for ethereal that I've seen before include "Celestial; insubstantial" , "There in lea - it looks delicate" , "Impalpable" , "Very delicate - tale here (anag)" , "'Extremely delicate, almost not of this world (8)'" .)

I've seen this clue in The Irish Times.

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