Artifice when dealing with a craft secret (5,2,3,5)

I believe the answer is:

trick of the trade

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

'a craft secret' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'artifice when dealing' is the wordplay.
'artifice' becomes 'trick' (I've seen this in another clue).
'when' becomes 'ofthe' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'dealing' becomes 'trade' (trade is a kind of dealing).
'trick'+'ofthe'+'trade'='TRICK OF THE TRADE'

'with' is the link.

Can you help me to learn more?

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

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.