Related Clues:

• Agent for runner?
• Envoy to dine with English earl now and then
• Communication carrier
• Predicament encountered by awfully green go-between ...
• Envoy has trouble with green movement
• Litter with green rubbish on Mercury, perhaps
• Courier has difficulty getting green transport
• Courier in eating-place served with green bananas
• Runner miles north of German city, for example, going over river
• Shambles! No good Queen covering up final note from Freddie Mercury
• Don't shoot him for telling you jam's weirdly green