Crossword Genius

Turn off internet connection (8)

Ross

I believe the answer is:

unfriend

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

'off internet connection' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'turn' is the wordplay.
I cannot quite understand how this works, but
'turn' could be 'end' (ending is a kind of turning) and 'end' is found in the answer.
This explanation may well be incorrect...

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I've seen this clue in The Times and The Sunday Times.
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