Related Clues:

• Abbr. on a citation, perhaps
• Going rate?: Abbr.
• Spinning rate (Abbr.)
• 33 1/3 or 45: Abbr
• Rotational meas
• 45 or 78, briefly
• Driving concern: abbr.
• Tach. meas.
• Rotation stat
• Cop's radar meas.
• Meas. of engine speed
• Citation abbreviation
• Rate of rotation, abbr.
• Tachometer info
• LP's 33 1/3