Mass

Unfortunately, without more context or information about the crossword question and the specific clue “Mass is WAD,” it is impossible to provide a detailed description of the answer. It is possible that “WAD” is an acronym or abbreviation that refers to a unit of measurement, a scientific concept, or a term related to religion or spirituality. It is also possible that “Mass” is being used in a different context unrelated to its usual meaning referring to the amount of matter in an object. To provide a more accurate answer, additional information about the crossword puzzle and the specific clue is needed.