The girl from Esher (3)
I believe the answer is:
she
'the girl' is the definition.
(I've seen this in another clue)
'from esher' is the wordplay.
'from' indicates the answer is hidden within the clue.
'SHE' is hidden in the letters of 'esher'.
(Other definitions for she that I've seen before include "1887 Rider Haggard novel" , "H. Rider Haggard novel" , "Female pronoun" , "The one who must be obeyed" , "Book" .)