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English definition of “clear sth up”

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clear sth up

verb uk phrasal verb with clear   /klɪər/ us    /klɪr/
B2 to give or find an explanation for something, or to deal with a problem or argument: They never cleared up the mystery of the missing money. After 20 years the case has finally been cleared up.
(Definition of clear sth up phrasal verb, verb from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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