Hit cover of Bellini at thunderous volume? (4)
I believe the answer is:
biff
'hit' is the definition.
(biffing is a kind of hitting)
'cover of bellini at thunderous volume?' is the wordplay.
'cover of' suggests removing the centre (only the letters which cover the word).
'at thunderous volume?' becomes 'ff' (musical abbreviation for fortissimo, 'very strong').
'bellini' with its middle taken out is 'bi'.
'bi'+'ff'='BIFF'
(Other definitions for biff that I've seen before include "Punch" , "Hard blow with fist" , "strike" .)