Pasta dish displayed by star, a violininst (7)
I believe the answer is:
ravioli
'pasta dish' is the definition.
(I've seen this before)
'displayed by star a violininst' is the wordplay.
'displayed by' says the answer is hidden in the clue.
'RAVIOLI' is hidden within 'star a violininst'.
(Other definitions for ravioli that I've seen before include "Pasta resembling pillowcases" , "Fare" , "Small stuffed pasta" , "Filled pasta dish" , "Meat-filled pasta squares" .)