Conversed about part of song (5)
I believe the answer is:
verse
'part of song' is the definition.
(I've seen this before)
'conversed about' is the wordplay.
'about' indicates a hidden word (the clue goes around or about the answer).
'VERSE' can be found hidden inside 'conversed'.
(Other definitions for verse that I've seen before include "Piece of poetry" , "Part of a song or poem" , "Part of hymn" , "few lines of writing?" , "literary offering" .)