Possible Clues:

• Musical work
• Showboat or The Gondoliers, say
• Patience might provide such light entertainment
• Light musical, as by G & S
• Intemperate article about a key stage work
• Arranged to repeat a theatrical production
• Relative of a musical
• Singing coming from a tree-top
• Show it's wrong to repeat
• How a poet gets about a rand, perhaps, for a little bit of music for show