Great cook's equipment – mine comes from the east (3-3)
I believe the answer is:
tip-top
'cook's equipment mine comes from the east' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.
'great' is the wordplay.
I cannot quite see how this works, but
'great' could be 'top' and 'top' is located in the answer.
The remaining letters 'tip' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Another definition for tip-top that I've seen is " First-class".)