Possible Clues:

• Part of a skirt or trousers
• It was extravagant also to purchase black belt
• Reportedly shrink with restricted girdle
• Dress to some extent rubbish? Not permitted to say
• No dumping trash, they say, for a bit of skirt?
• Elastic site
• Sash window's opening a bit and warping when sun gets in
• Pajama part
• Cincture