Tarzan: he rebuilt city (8)
I believe the answer is:
nazareth
'city' is the definition.
(I have seen 'Biblical city' mean 'nazareth' so perhaps 'city' could also mean 'nazareth')
'tarzan he rebuilt' is the wordplay.
'rebuilt' indicates anagramming the letters.
'tarzan'+'he'='tarzanhe'
'tarzanhe' anagrammed gives 'NAZARETH'.
(Other definitions for nazareth that I've seen before include "The home of Joseph and Mary according to the Gospels" , "Town where Jesus grew up" , "Town in Galilee where Christ spent his youth" , "where preacher was raised" , "Home town of Joseph and Mary" .)