Some soup as tasty as spaghetti? (5)
I believe the answer is:
pasta
'spaghetti?' is the definition.
(spaghetti is a kind of pasta)
'some soup as tasty' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'PASTA' is hidden in the letters of 'soup as tasty'.
'as' acts as a link.
(Other definitions for pasta that I've seen before include "Flour and water foodstuff" , "Dish of dough made with durum wheat" , "Macaroni, for example" , "Basis for serving" , "dish of food" .)