Scold Iran with hard resolution (8)
I believe the answer is:
harridan
'scold' is the definition.
(harridan is a kind of scold)
'iran with hard resolution' is the wordplay.
'with' is a charade indicator (letters next to each other).
'resolution' is an anagram indicator.
'iran'+'hard'='iranhard'
'iranhard' anagrammed gives 'HARRIDAN'.
(Other definitions for harridan that I've seen before include "Old woman scold" , "nasty old woman" , "old woman, belligerent sort" , "Old nag" , "Virago -- rain hard (anag)" .)