The crossword solution for the term 'Stalactite Setting' is 'CAVE'. A CAVE is a natural underground space large enough for a human to enter. Caves are formed by the weathering of rock and often extend deep underground. Stalactites are a type of speleothem, or CAVE formation, that hang from the ceiling of a CAVE. They are formed by the slow dripping of mineral-rich water from the ceiling of the CAVE, and over time they form long icicle-like structures.