Ram a car on interstate carrying pasta (8)
I believe the answer is:
macaroni
'pasta' is the definition.
(I know that macaroni is a type of pasta)
'ram a car on interstate carrying' is the wordplay.
'carrying' says the answer is hidden in the clue.
'MACARONI' is hidden in the letters of 'ram a car on interstate'.
(Other definitions for macaroni that I've seen before include "2 [PASTA]" , "Pasta in long tubes" , "Italian fare" , "Slender tubes of pasta" , "With which one tube-feeds" .)