Possible Clues:

• Wrapped up
• Group picking up pensions, covered
• Bound to give reason why group consists of old rockers?
• Bound like Buena Vista Social Club
• Dressed old musicians first
• State of a boxer's ungloved fists
• Group getting on with dressing
• Covered Rolling Stones perhaps, geriatric
• What a bind it was when the orchestra got out of date
• Sewn up, in a way