Possible Clues:

• Street musician
• Street performer
• Street entertainer
• Public entertainer
• A person of note outside producing the numbers on the street
• American occupying kerb bothered street performer?
• One providing street with numbers?
• Vehicle on pavement edge clipped street performer
• Is responsible for the number on the street and for publicly airing what's at end of 14 across
• Source of numbers on street?