A craze that may seem no end daft (3)

I believe the answer is:

fad

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'a craze' is the definition.
('fad' can be a synonym of 'craze')

I cannot understand how the rest of the clue works.

(Other definitions for fad that I've seen before include "Caprice" , "Craze; idiosyncrasy" , "Temporary vogue or craze" , "'Craze, all the rage (3)'" , "Affectation" .)

I've seen this clue in the Evening Standard.

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