Reef taken for a ride endlessly (4)
I believe the answer is:
isle
'reef' is the definition.
(thesaurus)
'taken for a ride endlessly' is the wordplay.
'taken for a ride' becomes 'misled' (I've seen this before).
'endlessly' means to look at the middle letters (the ends of the words are removed).
The central letters of 'misled' are 'ISLE'.
(Other definitions for isle that I've seen before include "Small island" , "Small region of land" , "Small seabound place" , "Prince Edward perhaps" , "Little land" .)