Part of Dorset here, always heavenly (8)

I believe the answer is:

ethereal

'heavenly' is the definition.
('ethereal' can be similar in meaning to 'heavenly')

'part of dorset here always' is the wordplay.
'part of' says the answer is hidden in the clue.
'ETHEREAL' is hidden within 'dorset here always'.

(Other definitions for ethereal that I've seen before include "Heavenly - fairy-like" , "Spiritual" , "Impalpable" , "Take ale there: it's light and delicate" , "Insubstantial, other-worldly" .)

I've seen this clue in The Times.

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