In Paris, a stall introduces right floor covering (8)
I believe the answer is:
underlay
'floor covering' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'in paris a stall introduces right' is the wordplay.
'in paris a' becomes 'un' ('a' in French).
'stall' becomes 'delay' (I've seen this in another clue).
'introduces' is an insertion indicator.
'right' becomes 'r' (common abbreviation).
'delay' going around 'r' is 'derlay'.
'un'+'derlay'='UNDERLAY'
Can you help me to learn more?
(Other definitions for underlay that I've seen before include "Carpet backing" , "carpet protection" , "Was the cause of something" , "Darn Yule (anag.)" , "Lining placed beneath carpet etc" .)