That woman from Esher (3)
I believe the answer is:
she
'that woman' is the definition.
(she refers to a woman)
'from esher' is the wordplay.
'from' indicates a hidden word.
'SHE' is hidden within 'esher'.
(Other definitions for she that I've seen before include "Rider's novel" , "1887 Rider Haggard novel" , "Book" , "lady" , "That woman" .)