Worksheets, phone orders; the guy has all the necessary experience (2,5,3,5)
I believe the answer is:
he knows the ropes
'all the necessary experience' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'worksheets phone orders the guy has' is the wordplay.
I cannot quite see how this works, but
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found in the answer.
'guy' could be 'hero' (I have seen 'Brave guy' mean 'hero' so perhaps 'guy' could also mean 'hero') and 'hero' is found within the answer.
'has' could be 'knows' ('know' can be a synonym of 'have') and 'knows' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?