Related Clues:

• Genealogist's concern
• Rocket maneuver
• Roots
• Way down
• Downward path
• Start of a trip in a bathysphere
• Half of a mountaineering expedition
• Inceptions
• Mountain climber's return
• Commencements
• Landing preceder
• Beginnings, sources
• A coming down
• Beginnings, ancestry
• 'Beginnings, starting points (7)'