Well-known shop on about craftsman (6)
I believe the answer is:
cooper
'craftsman' is the definition.
(I know that cooper is a type of craftsman)
'well-known shop on' is the wordplay.
'well known' becomes 'er' (I can't justify this - if you can you should believe this answer much more).
'shop' becomes 'coop' (short for The Co-operative Group).
'on' is a charade indicator (letters next to each other).
'er' put after 'coop' is 'COOPER'.
'about' acts as a link.
Can you help me to learn more?
(Other definitions for cooper that I've seen before include "Maker of barrels" , "Cask/barrel maker" , "Craftsman" , "Cask and barrel maker" , "Porter with stout" .)