Lines spoken by characters in drama or fiction (8)
I believe the answer is:
dialogue
'lines spoken by characters in drama or fiction' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for dialogue that I've seen before include "Lines spoken in films, books etc" , "part of play one can't perform" , "The words spoken by characters in a play" , "The speech in a play" , "Conversation between two people" .)