Related Clues:

• Many a rock star is on it
• Band's plan
• Trip of much travail
• Soldier's period of service
• Long way to hoof it
• Promotional trip
• Go slow
• Trying trip
• -- of duty
• Tough haul
• Go from gig to gig
• Tiring journey
• Rock group's trip
• Serious trip
• Travel by bus, say