A concert itinerary is a plan that outlines the dates, locations, and venues of a musical TOUR. It typically includes the TOUR's ROUTE, the arenas or other venues where the concerts will be held, and the dates of each performance. In this case, the crossword solutions for the term 'concert itinerary' are TOUR (4 letters), ARENA (5 letters), and ROUTE (5 letters). TOUR refers to the series of performances that make up the itinerary, ARENA is the type of venue where the concerts will be held, and ROUTE is the path the performers will take between venues.