Take to court after one's dispute (5)
I believe the answer is:
'dispute' is the definition.
(I've seen this before)
'take to court after one's' is the wordplay.
'take to court' becomes 'sue' (as in suing somebody in court).
'after' is a charade indicator (letters next to each other).
'one's' becomes 'i's' (Roman numeral).
'sue' after 'is' is 'ISSUE'.
(Other definitions for issue that I've seen before include "Progeny of, send out" , "Children; put out" , "Topic; give out" , "litter" , "Children, edition" .)