Meat product in old car (6)
I believe the answer is:
banger
This could be a double definition.
'meat' is the first definition.
(banger is a kind of meat)
'product in old car' is the second definition.
'banger' can be an answer for 'car' (I have seen 'Old car ' mean 'banger' so perhaps 'car' could also mean 'banger'). I'm not sure about the 'product in old' bit.
Can you help me to learn more?
(Other definitions for banger that I've seen before include "It might just drive" , "Old and unreliable car" , "Noisy old car or slangy sausage" , "Clapped-out car" , "Old rattling car or slang sausage" .)