.....and I am in floods of tears, which is ironical (6)
I believe the answer is:
satire
'am in floods of tears which is ironical' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'and i' is the wordplay.
I cannot quite see how this works, but
'i' could be 'a' and 'a' is found within the answer.
The remaining letters 'stire' is a valid word which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for satire that I've seen before include "Writings ridiculing vice and folly" , "Jonathan Swift's forte?" , "work with cutting devices?" , "Lampoon" , "Sarcastic humour" .)