Related Clues:

• Revs in neutral
• Sits at a light
• Stays idle, in a way
• Poses, as for a portrait
• Takes the bench?
• Plops into a chair
• Uses a pew
• Bums around
• Is a good dog, maybe
• Remains unused
• Putters
• Wrests
• Has one's portrait painted
• Just sits around
• Keeps the engine running