Country in which one is surrounded by wandering bears (6)
I believe the answer is:
serbia
'country' is the definition.
(Serbia is an example)
'one is surrounded by wandering bears' is the wordplay.
'one' becomes 'i' (Roman numeral).
'is surrounded by' is an insertion indicator.
'wandering' indicates anagramming the letters.
'bears' anagrammed gives 'serba'.
'i' placed inside 'serba' is 'SERBIA'.
'in which' is the link.
(Other definitions for serbia that I've seen before include "Rabies in former Yugoslavia" , "Braise (anag) - country" , "South-east European country" , "part of Europe" , "Belgrade's country" .)