Pie that's hashed with last of egg pasta (9)
I believe the answer is:
spaghetti
'pasta' is the definition.
(I know that spaghetti is a type of pasta)
'pie that's hashed with last of egg' is the wordplay.
'hashed' indicates an anagram (I've seen 'hash' mean this).
'with' indicates putting letters inside.
'last of' says to take the final letters.
The final letter of 'egg' is 'g'.
'pie'+'thats'='piethats'
'piethats' anagrammed gives 'spahetti'.
'spahetti' enclosing 'g' is 'SPAGHETTI'.
(Other definitions for spaghetti that I've seen before include "Variety of pasta" , "Pasta twirled around a fork" , "Italian food" , "Past eight (anag.)" , "is often sucked in" .)