Undercarriage scratched in luxury car, being lower (8)
I believe the answer is:
limousin
'lower' is the definition.
(I know that Limousin is a type of lower)
'undercarriage scratched in luxury car' is the wordplay.
I cannot really understand how this works, but
'in' is within the answer.
'car' could be 'limo' (limo is a kind of car) and 'limo' is located in the answer.
The remaining letters 'us' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'being' acts as a link.
Can you help me to learn more?
(Other definitions for limousin that I've seen before include "French district" , "Cow" , "Kind of stock" , "French breed of cattle" .)