The term 'BAND HAND' can be broken down into two crossword solutions: ROADIE (6 letters) and AID (3 letters). A roadie is a person who works behind the scenes of a live music performance, typically responsible for setting up and taking down equipment, managing sound and lighting, and providing general assistance to the band. An AID is someone who provides assistance to another person, often in the form of advice or practical help. Both roles are essential to the success of a live music performance.