Exclude from law court (3)
I believe the answer is:
bar
This clue might be a double definition.
'exclude from' is the first definition.
(thesaurus)
'law court' is the second definition.
'bar' can be an answer for 'court' (thesaurus). I'm unsure of the 'law' bit.
Can you help me to learn more?
(Other definitions for bar that I've seen before include "Obstruct" , "Counter in 21" , "Save; pub" , "Except; counter" , "Establishment for the serving of alcoholic drinks" .)