White woman nominally (7)

I believe the answer is:

blanche

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'white woman nominally' is the definition.
I can't judge whether this defines the answer.

'white woman nominally' is the wordplay.
'white' becomes 'blanc' (I've seen this before).
'woman nominally' becomes 'he' (I am not sure about this - if you are sure you should believe this answer much more).
'blanc'+'he'='BLANCHE'

Can you help me to learn more?

(Other definitions for blanche that I've seen before include "- of Castile was Queen to Louis VIII of France" , "Name of woman" , "Girl" , "dish from 4 26 21 [A STREETCAR NAMED DESIRE]" , "- DuBois (Streetcar Named Desire)" .)

I've seen this clue in the Evening Standard.

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