Might it help to change banks? (6)
I believe the answer is:
bridge
'change banks?' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe there's an association between them I don't understand?
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for bridge that I've seen before include "indoor game" , "link" , "One on the fiddle" , "part for violin" , "Game; cross (river)" .)