The washerwoman? Not her! (3)
I believe the answer is:
she
'her' is the definition.
(thesaurus)
'the washerwoman?' is the wordplay.
'SHE' is hidden in amongst the letters.
But, I'm not sure how the hidden word is indicated.
'not' acts as a link.
Can you help me to learn more?
(Other definitions for she that I've seen before include "That woman" , "lady" , "Female person" , "1887 Rider Haggard novel" , "H. Rider Haggard novel" .)