Quickly move wine container, initially impressive, but empty? (9)
I believe the answer is:
bombastic
'impressive but empty?' is the definition.
(bombastic means impressive but meaningless)
'quickly move wine container initially' is the wordplay.
'quickly move' becomes 'bomb' (bomb can mean to rush around).
'wine' becomes 'asti' (Italian wine).
'initially' says to take the initial letters.
The first letter of 'container' is 'c'.
'bomb'+'asti'+'c'='BOMBASTIC'
(Other definitions for bombastic that I've seen before include "affected" , "Pretentious" , "Bimbo acts in boastful way" , "Extravagant" , "I cast bomb, being pompous in speech" .)