Possible Clues:

• Underground area
• Last position
• Sounds like one that will go for a sail, by the sound of it, underground
• Space for storing wine
• Room where wine is stored (6),
• Sounds like a wine salesman for the underground
• Wine-store
• Underground room - stock of bottled wines
• Sounds as if one is not the one buying drink there, by way of the underground
• Room where wine is usually stored