Clamp down
(PW) become stricter
Because he came home from the party so late, his father said he will start to clamp down on his curfew.
(MW)
Main Entry: clamp·down
Pronunciation: \ˈklamp-ˌdau̇n\
Function: noun
Date: 1940
: the act or action of making regulations and restrictions more stringent accounts, bank loans, and other inflationary influences — Time>
(free)
clamp down
To become more strict or repressive; impose controls: clamping down on environment polluters.