Possible Clues:

• "Just part of the job"
• Routine toil behind what could be a Walled Society? (3,2,1,4,4)
• Exhausted girl has to get out, having received just two points — it's no trouble (3,2,1,4,4)
• Part of the job of Ada Yallsop? (3,2,1,4,4)
• "Just doing my job"
• Exhausted girl was heartlessly sent back into city - it's part of the job (3,2,1,4,4)
• Rome's construction wasn't routine (3,2,1,4,4)
• Building of Rome not such a routine operation? (3,2,1,4,4)