The term BALL ATTENDEE can be broken down into three crossword solutions: BELLE (5 letters), MISS (4 letters), and ALUM (4 letters). A BELLE is a young woman who is considered to be attractive and fashionable. The term MISS is a title of respect for an unmarried woman, typically one below the rank of lady. An ALUM is a former student or graduate of a school, college, or university. Therefore, a ball attendee could be a young, unmarried woman who is attractive and fashionable, or a former student or graduate of a school, college, or university.