Crossword Genius

Best ways to leave market (8)

Ross

I believe the answer is:

outsmart

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'best' is the definition.
(outsmarting is a kind of besting)

'ways to leave market' is the wordplay.
'ways to leave' becomes 'outs' (I can't justify this - if you can you should give a lot more credence to this answer).
'market' becomes 'mart' (synonyms).
'outs'+'mart'='OUTSMART'

Can you help me to learn more?

(Other definitions for outsmart that I've seen before include "Fox; deceive" , "Fool" , "Best" , "Excel in cleverness" , "Defeat by skillful maneuvering" .)

I've seen this clue in The Guardian.
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