Flier cut in in old car (6)
I believe the answer is:
jalopy
This could be a double definition.
'flier cut' is the first definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'in old car' is the second definition.
(I've seen this before)
'in' acts as a link.
Can you help me to learn more?
(Other definitions for jalopy that I've seen before include "Dilapidated old car" , "Old vehicle" , "heap" , "Clapped-out car" , "Old banger" .)