Crossword Genius

Listen: it's impossible with this! (6,9)

Ross

I believe the answer is:

silent treatment

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

'impossible with this' is the definition.
The definition suggests a singular noun which matches the answer.

'listen' is the wordplay.
I cannot quite understand how this works, but
an anagram of 'listen' is 'silent' which is located in the answer.
The remaining letters 'treatment' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

'it's' acts as a link.

Can you help me to learn more?

I've seen this clue in The Guardian.
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