Possible Clues:

• One getting inside pie that's square
• Open square, in Italy
• 3 down
• Takeaway favourite passed around a square
• Italian town square
• Onetime Mets catcher Mike
• Something usually round around a square
• Investigator finds couple of maps, whatever way you look at it, for Italian gathering
• Place article in fast food
• Square Italian dish containing anchovies, primarily