There's one in Surrey, also in the Sherwood forest (5)
I believe the answer is:
esher
'there's one in surrey' is the definition.
I can't tell whether this defines the answer.
'in the sherwood forest' is the wordplay.
'in' says the answer is hidden in the clue.
'ESHER' can be found hidden inside 'the sherwood forest'.
'also' is the link.
Can you help me to learn more?
(Other definitions for esher that I've seen before include "Sandown Park's location" , "Surrey town and racecourse" , "Town near Sandown Park" , "somewhere in Surrey" , "Surrey town, home of Sandown Park" .)