Smiffys Ringmaster Costume Jacket, Collar & Mini Top Hat, Fancy Dress, Adult Dress Up Costumes

I'm a size 10-12 with a 30" waist, smaller bust and larger hips (don't know exact measurements), any advice on which size to get?

Do you have sizing chart? Need size 14

Does the hat come attached to the wig?

Will a small fit a uk size 6?