Edible tubes (5)
I believe the answer is:
penne
'edible tubes' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for penne that I've seen before include "Type of pasta" , "Pasta (in wide tubes)" , "Pasta in short tubes" , "Pasta in the shape of tubes" , "Form of pasta" .)