Crossword puzzle clue "walls are an important part of it"

Walls are an important part of it

Actress Larson who portrayed Jeannette Walls in "The Glass Castle," to the delight of Walls herself

One with an important role in the production of a fantasy film or period drama (not so important for a porno, though)

Panelling on lower part of interior walls

Important part of a Tell tale

Important body part for a pitcher

Important part of the connecting rod in an internal-combustion engine

Important part of a plane