The commercial centre of Banbridge, for example? (8)
I believe the answer is:
downtown
I believe this is a double definition.
'the commercial centre' is the first definition.
'banbridge for example?' is the second definition.
(Banbridge is a town in County Down)
'of' is the link.
(Other definitions for downtown that I've seen before include "US city centre" , "The business centre" , "Central district in Newcastle" , "Central Park?" , "urban area" .)