Related Clues:

• It might result in a run
• Sonar echo
• Cause of a delay
• Cause of a run
• Unseen hazard
• Fishing line problem
• Point on a radar screen
• Delay cause
• Tiny light that's here and gone
• Radar-screen feature
• It can hold things up
• Hose glitch
• Negotiations hangup
• Start of a run
• Radar sound effect