Barrister endlessly confusing judges (8)
I believe the answer is:
arbiters
'judges' is the definition.
(I know this)
'barrister endlessly confusing' is the wordplay.
'endlessly' means to remove the last letter.
'confusing' indicates an anagram.
'barrister' with its final letter taken off is 'barriste'.
'barriste' anagrammed gives 'ARBITERS'.
(Other definitions for arbiters that I've seen before include "Authorities" , "Bar tries (anag) - judges" , "They decide disputed issues" .)