Related Clues:

• 'The Thinker,' for one
• Not dressed
• "The Thinker," for one
• How to skinny-dip
• Art-class model, often
• Art-class subject
• Posing subject
• Staircase descender?
• Wearing no clothes
• Like some bars
• With nothing on
• Like some yoga classes
• As one entered the world
• Like some art class models
• How we all entered the world