Conversed about poetry (5)
I believe the answer is:
verse
'poetry' is the definition.
(lines written in verse)
'conversed about' is the wordplay.
'about' says the answer is hidden in the clue (the clue goes around or about the answer).
'VERSE' is hidden in the letters of 'conversed'.
(Other definitions for verse that I've seen before include "Section of a poem" , "Stanza; poetry" , "literary offering" , "Poems" , "Metrical text" .)