The crossword solution for the term 'Italian Wine Province' is ASTI, which is a four-letter word. ASTI is a province in the Piedmont region of northwest Italy. It is known for its sparkling white wines made from the Moscato grape, as well as its red wines made from the Barbera and Dolcetto grapes. The province is also home to some of the most renowned wineries in the country, such as Gancia, Marchesi di Barolo, and Vietti.