In the altogether bald lie, he's preposterous (10)

I believe the answer is:

deshabille

'in the altogether' is the definition.

'bald lie he's preposterous' is the wordplay.
'preposterous' is an anagram indicator.
'bald'+'lie'+'hes'='baldliehes'
'baldliehes' is an anagram of 'DESHABILLE'.

I've seen this clue in The Everyman puzzle in The Observer.

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