Ten sloshed in pub talk (6)
I believe the answer is:
banter
'talk' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'ten sloshed in pub' is the wordplay.
'sloshed' is an anagram indicator.
'in' indicates putting letters inside.
'pub' becomes 'bar' (both are drinking establishments).
'ten' anagrammed gives 'nte'.
'nte' going within 'bar' is 'BANTER'.
Can you help me to learn more?
(Other definitions for banter that I've seen before include "Light-hearted friendly talk" , "Playfully-teasing remarks" , "Teasing remarks of good-humoured kind" , "Playfully teasing remarks" , "Badinage" .)