Bill left French water scene (7)
I believe the answer is:
Here is my best explanation:
'scene' is the definition.
'bill left french water' is the subsidiary indication.
'bill' becomes 'tab' (tab is a kind of bill).
'left' becomes 'l' (common abbreviation).
'french water' becomes 'eau' (I've seen this before).
(Other definitions for tableau that I've seen before include "Motionless group on stage", "Dramatic setting", "A scene with silent motionless group of people", "Pageant", "Picture of group or scene", "Frozen stage scene", "Dramatic scene (where the action is frozen?)", "'Frozen' theatrical scene", "Scene of still figures" and "- - vivant".)