Legit, speaking down to chairman? (5,5)
I believe the answer is:
above board
'legit' is the definition.
(something above board is legitimate or legal)
I don't understand how the remainder of the clue works.
(Other definitions for above board that I've seen before include "MD is" , "at the top of the table?" , "How player lifts men to make moves" , "On the level" , "Openly" .)