Leverage for pub profiting with potato snack (10,4)
I believe the answer is:
bargaining chip
'leverage' is the definition.
(bargaining chip is a kind of leverage)
'pub profiting with potato snack' is the wordplay.
'pub' becomes 'bar' (both are drinking establishments).
'profiting' becomes 'gaining' ('gain' can be a synonym of 'profit').
'with' is a charade indicator (letters next to each other).
'potato snack' becomes 'chip' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'bar'+'gaining'+'chip'='BARGAINING CHIP'
'for' is the link.
Can you help me to learn more?
(Other definitions for bargaining chip that I've seen before include "Something to be used in negotiations" , "A means of leverage" , "asset in trading" .)