Related Clues:

• Clutch's neighbor
• Put the brakes on
• Truck stopper
• React to a stoplight
• Use foam on, as a fire
• Start to stop
• Accelerator neighbor
• Auto pedal
• Keep back, make slow
• Darted about to hold back or delay
• Impede like trader
• Slow down for trader
• Hold back, slow progress
• Slow down growth
• Device for slowing or stopping car