Related Clues:

• Front-runner's edge
• Balloon variety
• Heavy metal
• One of two ballroom dancers
• Pipe material
• Auditioner's hope
• Starring role
• X-ray blocker
• Conduct
• Be in charge of
• Indication of opportunity
• ''I'm right behind you!''
• Wield a baton
• Get the ball rolling
• Solder component