Related Clues:

• At it
• Very active
• Doing something
• Not taking calls, perhaps
• Loiters with hard workers
• Fully occupied
• By the sound of it, not an idol in the way of public transport, perhaps
• Do they work with lubrication after tea?
• Occupied vehicle comes to three-way junction
• Hard workers? Those on the roof need to take oxygen ...
• Police officer is engaged
• Otherwise engaged
• Having many irons in the fire
• CID purchase spring onion with diamonds inside?
• Up to the tonsils locally with transport at end of July