Crossword Genius

Robbers identified in simple song picked up at bar (8)

Ross

I believe the answer is:

banditti

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

'robbers' is the definition.
(I've seen this before)

'identified in simple song picked up at bar' is the wordplay.
I cannot really understand how this works, but
'bar' could be 'ban' (I've seen this before) and 'ban' is located in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for banditti that I've seen before include "Criminals" , "Violent robbers" .)

I've seen this clue in The Times.
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