clear somebody's name
clear (one's) name
To exonerate oneself or another of a criminal charge or allegation of wrongdoing. I was only accused of that crime because I look like the perpetrator, so I was able to clear my name. Good luck trying to clear your name once people think you've done something wrong.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
clear somebody’s ˈnameprove that somebody is innocent: Throughout his years in prison, his family fought to clear his name.
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