Crossword Genius

Capital banked by chief, he left for France (1,6)

Ross

I believe the answer is:

a gauche

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

'capital banked by chief' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'he left for france' is the wordplay.
I cannot really understand how this works, but
'he' could be 'che' and 'che' is found in the answer.
This may be the basis of clue (or it may be nonsense).

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