Outstanding payment after misdemeanour (4)
I believe the answer is:
fine
'outstanding' is the definition.
(thesaurus)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for fine that I've seen before include "Magnificent" , "musical ending" , "Unclouded as the money penalty" , "Monetary penalty inflicted by law" , "A financial penalty - excellent" .)