Crossword Genius

How we talk about removing commercial element of drug abuse (7)

Ross

I believe the answer is:

diction

I'm a little stuck... Click here to teach me more about this clue!

'abuse' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'how we talk about removing commercial element of drug' is the wordplay.
I cannot quite understand how this works, but
'about' could be 'on' (as in a book 'on' a certain topic) and 'on' is present in the answer.
'element' could be 'ti' (Ti is an example) and 'ti' is present in the answer.
'drug' could be 'c' (C is an example) and 'c' is found in the answer.
The remaining letters 'di' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for diction that I've seen before include "Manner of enunciation" , "One's manner of speaking or pronouncing words" , "Elocution" , "Way of speaking or pronouncing" , "Mode of speech" .)

I've seen this clue in The Irish Times.
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