"Feet of clay" is generally used to refer to someone who has been held up as a paragon in some field, and who has subsequently failed to live up to his/her star billing.

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feet of clay

An underlying weakness or fault: “They discovered to their vast discomfiture that their idol had feet of clay, after placing him upon a pedestal” (James Joyce).

The American Heritage® Dictionary of the English Language, Third Edition
Copyright © 1996, 1992 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

Hope this helps.







The idiot also known as Capfka ...