Possible Clues:

• Support includes one who leads the way
• Space probe taking look round satellite at noon
• One would be the first to be charged with the lord around
• Develop a marine platform to cover unit
• Is that the first to get charged in a lord?
• Trail-blazer
• Trailblazer - initiate
• Duke, perhaps, hosts one about to become an explorer
• One who blazes the trail for others
• An explorer in new territory