Heavenly ale brewed around the outskirts of Rome (8)
I believe the answer is:
ethereal
'heavenly' is the definition.
('ethereal' can be similar in meaning to 'heavenly')
'ale brewed around the outskirts of rome' is the wordplay.
'brewed' indicates anagramming the letters.
'around' means one lot of letters goes inside another.
'outskirts of' says to hollow out the word (remove centre letters).
'rome' with its middle taken out is 're'.
'ale' anagrammed gives 'eal'.
'the'+'re'='there'
'eal' going around 'there' is 'ETHEREAL'.
(Other definitions for ethereal that I've seen before include "Having an unreal lightness or delicateness" , "Airy, celestial" , "Very delicate - tale here (anag)" , "Sublime" , "Extremely delicate and light; otherworldly" .)