Put money by bar (4)
I believe the answer is:
save
'bar' is the definition.
(both can mean 'except')
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for save that I've seen before include "Rescue; store" , "what prevents a goal" , "Rescue and put money aside" , "Rescue from harm" , "Retain" .)