A new broom sweeps clean.
A newly appointed person always has a strong desire and is enthusiastic about their work.
New [nju:]:
New.
Broom [ˈbru:m]:
Broom (Cytisus).
Broom (usually with a long handle).
A new broom – fig. an overzealous newly appointed official making sweeping changes.
Sweep [swi:p]:
To move swiftly, to be carried along.
To sweep, to clean, to brush (also fig.).
To touch lightly with a hand or fingers.
Clean [kli:n]:
Clean (also fig.), pure, washed, cleaned, swept.
Clean, uncontaminated, without impurities, without defects.
https://www.facebook.com/media/set/?set=a.10150874672598812.438247.88355293811&type=1