I am included in exchanges of invective (7)
I believe the answer is:
tirades
'invective' is the definition.
(I've seen this before)
'i am included in exchanges' is the wordplay.
'am included in' is an insertion indicator.
'exchanges' becomes 'trades' (trading is a kind of exchanging).
'i' inserted within 'trades' is 'TIRADES'.
'of' is the link.
(Other definitions for tirades that I've seen before include "Astride with streams of abuse" , "Long angry speeches of criticism or accusation" , "Astride (anag) - diatribes" , "Speeches of violent denunciation" , "Denunciations" .)