Tory leader visits unsuspecting resident (6)
I believe the answer is:
native
'resident' is the definition.
(I've seen this before)
'tory leader visits unsuspecting' is the wordplay.
'tory leader' becomes 't' (I've seen this in other clues).
'visits' indicates putting letters inside (visit can mean to go into).
'unsuspecting' becomes 'naive' (similar in meaning).
't' placed within 'naive' is 'NATIVE'.
(Other definitions for native that I've seen before include "Endemic - aborigine" , "Of person, belonging by birth to place" , "One locally born" , "Son" , "One born in a certain place" .)