Don’s fine to trade with chef’s first blender (9)
I believe the answer is:
processor
'don's' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for processor that I've seen before include "See 25" , "computer unit" .)