Crossword Genius

Menials working for Conservative female (10)

Ross

I believe the answer is:

underclass

I'm a little stuck... Click here to teach me more about this clue!

'menials working for conservative female' is the definition.
I can't judge whether this defines the answer.

'working for conservative female' is the wordplay.
'working for' becomes 'under' (I've seen this in another clue).
'conservative' becomes 'C' (UK political abbreviation).
'female' becomes 'lass' (lass is a kind of female).
'under'+'c'+'lass'='UNDERCLASS'

Can you help me to learn more?

(Other definitions for underclass that I've seen before include "The institutionally disadvantaged" , "Lowest social stratum" .)

I've seen this clue in The Guardian.
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