Possible Clues:

• 7, say, going topless in river where bridge is noted
• 'Sur le pont d'______ on y danse, on y danse'
• Rhone city
• Provence city
• French city, once seat of Popes
• Where some French danced, good number having tucked into a local wine
• French 7 with bridge
• 14th-century papal residence
• City on the Rh�ne, papal property until the French Revolution
• It's good, sheltering in home when river swirls round French town