Related Clues:

• NASA program that explored the outer planets
• One who may be in charge of a team
• British Columbia mine
• Western driver
• Porter who played with Parton
• One who blazes the trail for others
• An explorer in new territory
• Innovator
• Ground-breaker
• Has Carter gone into battle?
• Is that the first to get charged in a lord?
• Decapitate Carter and he's finished
• One is the first but never at last
• Always the first, never the last
• Is one first? Never last