Futile action with Korean mob that is running amok (4,2,3,4)
I believe the answer is:
bark at the moon
'futile action' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'korean mob that is running amok' is the wordplay.
'is running amok' indicates an anagram.
'korean'+'mob'+'that'='koreanmobthat'
'koreanmobthat' with letters rearranged gives 'BARK AT THE MOON'.
'with' is the link.
Can you help me to learn more?
(Another definition for bark at the moon that I've seen is " Make appeals that will never be met".)