Excitement on account of European seen around old city (6)
I believe the answer is:
furore
'excitement' is the definition.
(I have seen 'Wild excitement ' mean 'furore' so perhaps 'excitement' could also mean 'furore')
'account of european seen around old city' is the wordplay.
'account of' becomes 'for' (I've seen this in other clues).
'european' becomes 'E' (abbreviation e.g. EU).
'seen around' is an insertion indicator.
'old city' becomes 'ur' (ancient city state).
'for'+'e'='fore'
'fore' enclosing 'ur' is 'FURORE'.
'on' acts as a link.
(Other definitions for furore that I've seen before include "Frenzied excitement, uproar" , "Uproar, fuss and fury" , "Hoo-ha" , "'Uproar, brouhaha (6)'" , "Wild excitement; craze" .)