Conversation piece? (9)
I believe this is a double definition.
'conversation' is the first definition.
(I know that dialogue is a type of talk)
'piece?' is the second definition.
(thesaurus)
(Other definitions for dialogue that I've seen before include "part of play one can't perform" , "Agile duo in conversation" , "Talks" , "Lines spoken in films, books etc" , "Conversation as in a play" .)
(Another definition for soundbite that I've seen is " Succinct extract from a speech or interview".)
'conversation piece' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for phone that I've seen before include "Covert monitoring of electronic exchanges" , "Ring (someone)" , "Make a call" , "Call (someone)" , "Call, ring" .)