Pasta often served alla vodka (5)
I believe the answer is:
penne
'pasta often served alla vodka' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for penne that I've seen before include "Pasta in thick tubes" , "2 [PASTA]" , "Pasta in the shape of tubes" , "Wide tube-shaped pasta" , "Type of pasta" .)