She hopes network works out; the guy is quite experienced (2,5,3,5)

I believe the answer is:

he knows the ropes

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'out the guy is quite experienced' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'she hopes network works' is the wordplay.
'works' indicates anagramming the letters (letters worked into a new form).
'she'+'hopes'+'network'='shehopesnetwork'
'shehopesnetwork' is an anagram of 'HE KNOWS THE ROPES'.

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I've seen this clue in the Sydney Morning Herald.

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