Part of Canada - and parts of Iran too! (7)
I believe the answer is:
ontario
'part of canada' is the definition.
(I know that Ontario is part of Canada)
'parts of iran too' is the wordplay.
'parts of' is an anagram indicator.
'iran'+'too'='irantoo'
'irantoo' anagrammed gives 'ONTARIO'.
'and' is the link.
(Other definitions for ontario that I've seen before include "Most easterly Great Lake" , "one of the provinces" , "Most populous Canadian province" , "city" , "A North American lake" .)