Related Clues:

• Clear out
• Put one's foot down?
• Short circuit?
• Tachometer measure
• Oxygenate
• Poke holes in, perhaps
• Clerical title (Abbr.)
• Put bubbles in
• Gun the motor, for short
• Pt. of rpm
• Clerical abbreviation
• Speed (up)
• Suffuse with air
• Gun it in neutral
• Clerical addr.