Related Clues:

• One running errands
• Third of balls dropped by sportsman's runner
• Office intern, often
• Office boy is one of the swingers left out
• Errand runner, informally
• Employee who runs errands
• Person on errands
• Some running of errands for dogsbody
• Office fetcher
• Many an intern
• Page, often
• One picking up the staff lunch order, perhaps
• Production company's dogsbody
• Servant left abandoned by someone playing game
• Assistant who sounds like a rodent