Active barber’s arguing (2,4)
I believe the answer is:
at odds
'arguing' is the definition.
(I've seen this in another clue)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for at odds that I've seen before include "In conflict with, oppposed to (2,4)" , "In disagreement or dispute" , "On bad terms" , "Conflicting (with)" , "Disagreeing" .)