A town rebuilt by a Germanic god (5)
I believe the answer is:
wotan
'a germanic god' is the definition.
(I've seen this in another clue)
'a town rebuilt' is the wordplay.
'rebuilt' is an anagram indicator.
'a'+'town'='atown'
'atown' is an anagram of 'WOTAN'.
'by' is the link.
(Other definitions for wotan that I've seen before include "Teutonic god in the Ring Cycle" , "Germanic god" , "Wagnerian head god" , "Another name for Odin" , "Supreme god" .)