Vaguely observed international judge going round Italy (8)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

Vaguely observed international judge going round Italy INT (=international) + [I (=Italy, in IVR) in HEAR (=judge, try)]; according to Chambers , “in the air” means “prevalent in a vague or indefinite form”, hence “vaguely observed”