Toy involved in a 1950s craze; a potato and maize crisp (4,4)

I believe the answer is:

hula hoop

(Other definitions for hula hoop that I've seen before include "Toy ring" , "Ring spun round body" , "Circle of wood used in dance" , "Ring spun round waist" .)

I've seen this clue in The Times and The Sunday Times.

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