Possible Clues:

• Garment of Frenchman or Englishwoman?
• Eg Miss Brodie's casual wear
• Western wear that sounds like Autry's?
• 27 Across attire
• Form-fitting casual wear
• Wardrobe item for which Obama claimed he was 'unfairly maligned'
• Girl's or French man's clothes
• Guess things
• Article of apparel with styles found at the starts of 17-, 26-, 41-, 51- and 66-Across
• Girl’s legwear