Criminal alleges European is talk of bar (8)
I believe the answer is:
legalese
'talk of bar' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'criminal alleges european' is the wordplay.
'criminal' indicates anagramming the letters.
'european' becomes 'E' (abbreviation e.g. EU).
'alleges' is an anagram of 'legales'.
'legales'+'e'='LEGALESE'
'is' is the link.
Can you help me to learn more?
(Other definitions for legalese that I've seen before include "Special terms" , "formal language" , "contract wording?" , "such language at the bar!" , "Bar talk" .)