Inconsequential supporters of Kim and friend gain currency in Iran (10)
I believe the answer is:
immaterial
'inconsequential' is the definition.
(thesaurus)
'supporters of kim and friend gain currency in iran' is the wordplay.
'supporters of kim' becomes 'im' (I can't justify this - if you can you should give a lot more credence to this answer).
'and' is a charade indicator (letters next to each other).
'friend' becomes 'mate' (mate is a kind of friend).
'gain' is a charade indicator (letters next to each other).
'currency in iran' becomes 'rial' (I've seen this in another clue).
'im'+'mate'+'rial'='IMMATERIAL'
Can you help me to learn more?
(Other definitions for immaterial that I've seen before include "Irrelevant" , "unimportant" , "of no importance" .)