Possible Clues:

• Sort out liquor at this stage
• Platform used by odd sort in odd surroundings
• The Da is to beat on the piano at last up there
• Run out and play guitar on dais
• Where one may spout rubbish about son's spirit
• From where he stood Rattle's first tours lost money
• Stand a drink but sort out first
• Da is raised like this for a drink at last
• Orator's platform
• Play guitar, with leading characters in rock opera on stage