Crossword Genius

Mexican, note, cross with detective (6)

Ross

I believe the answer is:

mixtec

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'mexican' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'note cross with detective' is the wordplay.
'note' becomes 'mi' (as in do-re-mi).
'cross' becomes 'x' (an X is a cross).
'with' says to put letters next to each other.
'detective' becomes 'tec' (tec is short for detective).
'mi'+'x'+'tec'='MIXTEC'

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