Definition of "clear up" [clear up]

• To clarify, to correct a misconception. (verb)
• Of stormy weather, to dissipate, to become calm. (verb)

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• "Worst-case scenario, she said, Brie would be sent home with some antibiotics and her cough would clear up within a few days."
• "We had her see an excellent psychiatrist, Dr. Robert Samuels, and she was given some new medication that seemed to clear up the delusions."
• "Before leaving this point, we should clear up an area of misunderstanding about lean supply—the frequent assumption in the West that all parts are “sole-sourced” in a lean-supply system—that is, every part is supplied by only one supplier."