Italian city on the Po (5)
I believe the answer is:
turin
'italian city on the po' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for turin that I've seen before include "Piedmontese capital" , "Industrial city in northwest Italy" , "foreign city" , "NW Italian city with famous Shroud" , "North Italian city" .)