Stiff fabric (9)

I believe the answer is:

crinoline

(Other definitions for crinoline that I've seen before include "Material" , "Hooped skirt of previous times" , "Full stiff petticoat worn under a skirt" , "Outstanding skirt" , "Stiffened petticoat worn to puff out a skirt" .)

I've seen this clue in The Mirror.

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