Rim of an object which reinforces or holds it in place (6)

I believe the answer is:

flange

(Other definitions for flange that I've seen before include "Rim (on wheel)" , "Projecting rim or piece" , "Projecting (steel) collar" , "Projecting edge (on wheel, beam etc)" , "A projecting rim or edge" .)

I've seen this clue in The Guardian.

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