Related Clues:

• What a lover's heart may do
• Word with human and rat
• Teensy bit, to a chef
• Bit of Morse code
• See 66-Across
• Timed competition
• 100-yard dash, e.g.
• Preakness, for one
• Derby, e.g
• 'The Amazing --'
• Word with foot and rat
• Political competition
• Move rapidly
• T, to Morse
• Go fast