Remote city in ruins rebuilt (7)
I believe the answer is:
insular
'remote' is the definition.
(thesaurus)
'city in ruins rebuilt' is the wordplay.
'city' becomes 'la' (Los Angeles).
'in' means one lot of letters goes inside another.
'rebuilt' indicates an anagram.
'ruins' anagrammed gives 'insur'.
'la' inserted inside 'insur' is 'INSULAR'.
(Other definitions for insular that I've seen before include "Detached from mainstream" , "withdrawn" , "Man may be thus described" , "Narrowly restricted in outlook or scope" , "Blinkered" .)