Related Clues:

• Speed
• Distance unit in duels
• Stride
• It might need to be picked up
• Exhibit nervousness
• Slow period
• It's set by a runner
• Go to and fro
• It may be taken up
• Act the expectant father
• Rate of walking speed
• Going rate
• Pick it up if you're behind
• Walk nervously
• About 2 1/2 feet for humans, I suppose