Banking not about to be providing dodgy data? (5)
I believe the answer is:
lying
'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" .)