Possible Clues:

• Disapproving expression on universal dress for dance
• Skirt for ballet class
• South African Peace Nobelist, 1984
• That sounds as if it comes to four, in short
• Skirt or tie, loosely speaking
• Spoken of extravagant skirt
• Hippo's attire in "Fantasia"
• Short ballet skirt
• Stage apparel
• Skirt sounding exquisite