Related Clues:

• Unusually courteous delegate
• Use contractors for courteous works
• Subcontract work
• Subcontract abroad before spring
• In error over rise, get someone independent to do it
• To buy in is unpopular — sullen over costs, expensive initially
• Contract work from an outside supplier
• Exceptionally courteous place with a different supplier
• Privatise public water supply
• Courteous founders get stuff from elsewhere
• Hire third party to expose informer
• Put (work) to an external supplier
• Use external company to expose spy's confidant
• Use external company to expose a gent's confidant
• Senseless getting Serco, you said — maybe give someone else the job