Possible Clues:

• The United States, metaphorically
• Finest of Lovely Lady Liberty's recipes, per a "Schoolhouse Rock" song
• Culture-blending metaphor
• Mel Gibson's lead becomes paltry part in 'The Crucible'
• Place where different peoples mix
• The U.S., metaphorically
• Dissolving container
• Complicated plot, gem involving element in multicultural area
• Vessel — place for mixture
• Place where different peoples mingle