Oriental article authentic and heavenly (8)
I believe the answer is:
ethereal
'heavenly' is the definition.
('ethereal' can be similar in meaning to 'heavenly')
'oriental article authentic' is the wordplay.
'oriental' becomes 'e'.
'article' becomes 'the' (the 'definite article' part of speech).
'authentic' becomes 'real' (I've seen this before).
'e'+'the'+'real'='ETHEREAL'
'and' acts as a link.
(Other definitions for ethereal that I've seen before include "Having an unreal lightness or delicateness" , "Refined, airy" , "Exquisite - as light as air" , "Extremely delicate and light, not of this world" , "Airy or supernatural" .)