Possible Clues:

• The singing boy was working in the theatre
• Chose to save time and ran
• 'So surge on to have had patience, by the sound of it, here (8)'
• How Edward's work in the theatre is perhaps invoiced
• Perhaps Norma and Edward ran
• Worked in the theatre, singing to start with
• Managed
• Worked in drama - with Edward!
• Edward the singer performed in the theatre
• Ted sang in the theatre and worked in the theatre