Married man originally a lady! (5)

I believe the answer is:

madam

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'a lady' is the definition.
('madam' can be a synonym of 'lady')

'married man originally' is the wordplay.
'married' becomes 'm'.
'man originally' becomes 'adam' (Adam is an example. I am not sure about the 'originally' bit.**).
'm'+'adam'='MADAM'

Can you help me to learn more?

(Other definitions for madam that I've seen before include "Stuck-up girl" , "Make wildly happy" , "How one may address a woman" , "Formal address to a woman - precocious little girl" , "Conceited girl (colloq.)" .)

I've seen this clue in The Telegraph.

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