Promoters of Scottish silks (9)
I believe the answer is:
advocates
'promoters of scottish silks' is the definition.
The answer and definition can be both people as well as being plural nouns.
Perhaps you can see an association between them that I don't see?
This is the entire clue.
Can you help me to learn more?
(Other definitions for advocates that I've seen before include "Recommends" , "briefs?" .)