Sat at back beside toilet for musical recitals (8)
I believe the answer is:
cantatas
'musical recitals' is the definition.
The answer and definition can be both related to communication as well as being plural nouns.
Perhaps there's an association between them I don't understand?
'sat at back beside toilet' is the wordplay.
'back' says the letters should be written backwards.
'beside' is a charade indicator (letters next to each other) (I've seen this in other clues).
'toilet' becomes 'can' (synonyms).
'sat'+'at'='satat'
'satat' reversed gives 'tatas'.
'tatas' put after 'can' is 'CANTATAS'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for cantatas that I've seen before include "Musical works sung by chorus and soloists" , "Vocal pieces" .)