Related Clues:

• Clerical title, briefly
• Mentally intimidate
• Charge (up)
• Accelerate, with "up"
• Intensify, with "up"
• College maj.
• Gun, as the engine
• Crank (up)
• Course in which you might study B.F. Skinner
• Increase, with "up"
• Show off one's Harley, in a way
• Ruffle, with "out"
• MLK Jr., for ex.
• Gun, as a motor
• ''I totally had you!''