Possible Clues:

• Source of room with keys?
• Speed in small pub is key
• Name for 55-Across
• The long key
• Apt spot to do the moonwalk?
• Box containing one key, a long key
• Box containing one black key
• Blank keyboard button
• Computer key in room alongside drinking establishment
• For those looking for job in wine industry that's out of this world, it's key on first line under 'CV'