Scent of a city (7)
I believe the answer is:
cologne
I believe this is a double definition.
'scent' is the first definition.
(I've seen this in another clue)
'a city' is the second definition.
(Cologne is an example)
'of' is the link.
(Other definitions for cologne that I've seen before include "German river port" , "European city" , "Town" , "Scent - German city" , "Scented toilet water" .)