Mediaeval torture device (4,6)

I think it could be either:

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4,6

iron maiden

(Other definitions for iron maiden that I've seen before include "Instrument of torture (a hinged case lined with spikes)" , "Group" , "Box-shaped instrument of torture - no meridian (anag)" , "a suit, very sharp underneath the surface" , "used to inflict pain" .)

I've seen this clue in The Guardian.

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