Talks conveying a lot of sound lines (9)
I believe the answer is:
Here is my best explanation:
'lines' is the definition.
(as in one half of a co-ordinate)
'talks conveying a lot of sound' is the wordplay.
'talks' becomes 'orates' (orating is a kind of talking).
'conveying' is an insertion indicator.
'a lot of sound' becomes 'din' (din can mean a loud disturbance).
'orates' placed around 'din' is 'ORDINATES'.