Crossword puzzle clue "level of society"

Level of society

Low-level pollution or high-level protection

Warning sign at a train station's food court? (NOTE: The original sign, without my additions, actually exists. It's in Grand Central Terminal in NYC, on the lower level — the food court level. The sig

Class, level or class level

Management level or theater level

Learned society of France

Trying to change society

What the society butcher considered himself to be