Place on a road for old car (8)
I believe the answer is:
standard
'old car' is the definition.
The definition and answer 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?
'place on a road' is the wordplay.
'place' becomes 'stand' (standing is a kind of placing).
'on' says to put letters next to each other (in a down clue, letters appear on others).
'road' becomes 'rd' (abbreviation for road).
'stand'+'a'+'rd'='STANDARD'
'for' is the link.
Can you help me to learn more?
(Other definitions for standard that I've seen before include "Average sort of flag" , "The usual range" , "Normal; flag" , "Typical, normal" , "authority" .)