Crossword puzzle clue "under ground"

Backyard feature that might be in-ground or above-ground

"___ Adventures Under Ground"

Concealing something under the ground

Under ground?

It's classified by the U.S.D.A. as red meat under cooking guidelines and as poultry under inspection standards

"Under capitalism, man exploits man. Under communism, it's ___": John Kenneth Galbraith

Something under the counter that puts people under the table

___ Work ("Down Under" band from down under)