Crossword Genius

Mad Miss Flite is most weak (9)

Ross

I believe the answer is:

flimsiest

'most weak' is the definition.
('flimsy' can be similar in meaning to 'weak')

'mad miss flite' is the wordplay.
'mad' indicates an anagram.
'miss'+'flite'='missflite'
'missflite' with letters rearranged gives 'FLIMSIEST'.

'is' acts as a link.

(Another definition for flimsiest that I've seen is " most easily damaged".)

I've seen this clue in The Times.
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