Nominally depressed, that is (5)

I believe the answer is:

sadie

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'nominally depressed that is' is the definition.
I can't judge whether this defines the answer.

'depressed that is' is the wordplay.
'depressed' becomes 'sad' (I've seen this in another clue).
'that is' becomes 'ie' (short for Latin 'id est', 'that is').
'sad'+'ie'='SADIE'

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(Another definition for sadie that I've seen is " Woman".)

I've seen this clue in the Evening Standard.

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