Pasta shapes at origin (8)
I believe the answer is:
rigatoni
'pasta' is the definition.
(I know that Rigatoni is a type of pasta)
'shapes at origin' is the wordplay.
'shapes' indicates an anagram (shape can mean to mould or transform).
'at'+'origin'='atorigin'
'atorigin' is an anagram of 'RIGATONI'.
(Other definitions for rigatoni that I've seen before include "Type of pasta" , "Pasta; at origin (anag.)" , "Short fluted tubes of pasta" , "Pasta - I got rain (anag)" , "Pasta dish" .)