Free from some harridan (3)

I believe the answer is:

rid

'free' is the definition.
('rid' can be a synonym of 'free')

'from some harridan' is the wordplay.
'from' indicates the answer is hidden within the clue.
'RID' is hidden in the letters of 'some harridan'.

(Other definitions for rid that I've seen before include "Lose, shake off" , "Disabuse" , "Free from something unpleasant" , "Throw off, unburden" , "Free, disencumber" .)

I've seen this clue in the Evening Standard.

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