cicerone

‖n.; pl. It. Ciceroni E. Cicerones [ It., fr. L. Cicero, the Roman orator. So called from the ordinary talkativeness of such a guide. ] One who shows strangers the curiosities of a place; a guide. [ 1913 Webster ]

Every glib and loquacious hireling who shows strangers about their picture galleries, palaces, and ruins, is termed by them [ the Italians ] a cicerone, or a Cicero. Trench. [ 1913 Webster ]