Based on the clue 'a gathering of famous historical people meeting of...', what is the answer?

Based on the clue 'a garment worn by a child perhaps aboard an operat...', what is the answer? Based on the clue 'a garment worn by cooks shares its name with this ...', what is the answer? Based on the clue 'a gateway to yellowstone its montanas most populou...', what is the answer? Based on the clue 'a gathering at which pete seeger joan baez or an ...', what is the answer? What is referred to by 'a gaucho in galveston'? Based on the clue 'a gaunt monarch or the act of cogitation', what is the answer? Based on the clue 'a gazebo or an outdoor newsstand 5', what is the answer? What is associated with: a gazelle is a graceful animal this 1841 ballet has been called the hamlet of the dance?