A blend of chats and spiel? (5,5)
I believe the answer is:
sales pitch
'a blend' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'of chats and spiel?' is the wordplay.
'of' is an anagram indicator (the answer comes from or 'of' the letters).
'and' says to put letters next to each other.
'chats' after 'spiel' is 'spielchats'.
'spielchats' with letters rearranged gives 'SALES PITCH'.
(Other definitions for sales pitch that I've seen before include "Market stall" , "talk of flogging" , "Spiel; patter" , "Vendor's patter" , "that's delivered by rep" .)