Historic location as Ionic should be restored (7)
I believe the answer is:
nicosia
'historic location' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'as ionic should be restored' is the wordplay.
'as ionic' anagrams to 'NICOSIA'.
But, I'm not clear how this is indicated.
Can you help me to learn more?
(Other definitions for nicosia that I've seen before include "Mediterranean city" , "Divided Cypriot city" , "Casino I find in Cyprus - that's capital" , "Largest city on Cyprus" , "Divided Cypriot capital" .)