I think Bari's wrong - it's somewhere else in Italy (6)
I believe the answer is:
umbria
'in italy' is the definition.
('Umbria' is part of 'italy')
'i think bari's wrong' is the wordplay.
'i think' becomes 'um' (I can't explain this - if you can you should give a lot more credence to this answer).
'wrong' indicates an anagram.
'bari' anagrammed gives 'bria'.
'um'+'bria'='UMBRIA'
'it's somewhere else' is the link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for umbria that I've seen before include "part of Italy" , "in the Tiber region" , "Italian region" , "hilly area of Italy" , "Mountainous region in central Italy" .)