Related Clues:

• A criminal might be on it
• Go quickly, archaically
• Step on it, old-style
• Quick getaway
• Point on a diamond
• Emergency advice
• Waste no time at all
• Unbroken string
• Perform a cowardly act
• Clue for 18-, 24-, 52- and 62-Across
• Move apace
• Go hastily
• 'Get thee hence!'
• Nylon nuisance
• Enter a marathon