One of those court matchmakers (3)
I believe the answer is:
set
'court matchmakers' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's a link between them I don't understand?
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for set that I've seen before include "Put, coagulate" , "Fixed; collection" , "Solidify; group" , "Scenery etc. for a drama" , "Prepared" .)