This helps when changing banks (6)

I believe the answer is:

bridge

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'this helps when changing banks' is the definition.
The definition suggests a singular noun which matches the answer.

This is all the clue.

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(Other definitions for bridge that I've seen before include "Span, connecting structure" , "Card-game" , "link" , "Game; crossing" , "Game; cross (river)" .)

I've seen this clue in The Times.

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