Related Clues:

• Make a motor roar
• Gun, in a car
• Up the RPMs
• Run up the engine
• Accelerate (abbrev.)
• Clergy title
• Maybe the curate's noisy action on bike
• Press accelerator
• -- counter, informal name for a tachometer
• Put one's foot down for a civilian's inclusion?
• Prevented clergyman making an appearance
• One turn of an engine, in short
• Increase motor speed, briefly
• Gun, in a way
• Spin, for short