Crossword Genius

Banking not about to be providing dodgy data? (5)

Ross

I believe the answer is:

lying

I'm a little stuck... Click here to teach me more about this clue!

'banking' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe there's an association between them I don't understand?

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for lying that I've seen before include "Fabrication" , "Prostrate -- prone" , "Not standing" , "Telling falsehoods" , "Mendacious; recumbent" .)

I've seen this clue in The Independent.
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