Weariest form, in a manner of speaking (8)

I believe the answer is:

asitwere

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'a manner of speaking' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'weariest form' is the wordplay.
'form' indicates an anagram (another form of the letters).
'weariest' with letters rearranged gives 'ASITWERE'.

'in' acts as a link.

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(Another definition for asitwere that I've seen is " so to speak".)

I've seen this clue in The Daily Express.

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