Yes, to make a clean sweep of all lies.

对，把一切谎言都扫荡得一乾二净。

New brooms often make a clean sweep of old staff.

新扫帚总是要将所有旧的灰尘一扫而净。

China expects to make a clean sweep in the Water Cube at home land.

中国跳水队希望在水立方包揽所有金牌。

I want to make a clean sweep of everything I've learnt and start afresh.

我要和以前学的那些玩艺儿一刀两断，一切从头开始。

Broom meant to make a clean sweep of things, a clean sweep of what had come before.

扫帚的寓意是将事情做个彻底的了结，对曾经发生过的事情一扫而空。