Related Clues:

• Keeps the engine running
• Loafs
• Runs while standing still
• Engine levels
• ''Pronto!''
• Sits
• What a slacker does
• Lazes around
• Lets the engine run
• Sits at a light, say
• Of engine, just ticks over in neutral
• Lazes or ticks over
• Lazes about, just ticks over
• Does little, just ticks over
• Just doesn't work, except for the heathen, by the sound of it