Crossword Genius

Informal discussions in cabs on financial extremes (8)

Ross

I believe the answer is:

conflabs

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

'informal discussions in cabs' is the definition.
I know nothing about this answer so I can't tell whether this works.

'on financial extremes' is the wordplay.
I cannot really see how this works, but
'on' is within the answer.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.
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