This angry exchange standing on floor (9,6)

I believe the answer is:

crossword puzzle

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'floor' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps you can see an association between them that I don't see?

'this angry exchange standing on' is the wordplay.
'this' becomes 'crossword' (the crossword currently being solved is an example).
'angry exchange standing' becomes 'puzzle' (I can't explain this - if you can you should give a lot more credence to this answer).
'on' says to put letters next to each other.
'crossword'+'puzzle'='CROSSWORD PUZZLE'

Can you help me to learn more?

(Another definition for crossword puzzle that I've seen is " This".)

I've seen this clue in The Telegraph.

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