Fashionable rival hosts love Italy's pasta (7)
I believe the answer is:
ravioli
'pasta' is the definition.
(I know that ravioli is a type of pasta)
'fashionable rival hosts love italy's' is the wordplay.
'fashionable' indicates an anagram (letters can be fashioned into something else).
'hosts' indicates putting letters inside (inserted letters are welcomed or hosted).
'love' becomes 'o' (love means zero in tennis).
'italy' becomes 'i'.
'rival' anagrammed gives 'ravil'.
'ravil' going around 'o' is 'raviol'.
'raviol'+'i'='RAVIOLI'
(Other definitions for ravioli that I've seen before include "created with Italian gut in mind" , "Filled pasta envelopes" , "Small cases of dough with savoury fillings" , "Filled form of pasta" , "Small square pasta cases containing savoury filling" .)