Heavenly cigar? (6)

I believe the answer is:

corona

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'cigar?' is the definition.
(corona is a kind of cigar)

I don't understand the rest of the clue.

(Other definitions for corona that I've seen before include "Gaseous envelope of sun" , "Circle of light round the moon" , "Sun's gaseous envelope" , "Sun's envelope; cigar" , "Circle of light around sun or moon" .)

I've seen this clue in the Evening Standard.

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