Definition of "clampdown"
clampdown
noun
plural clampdowns
A sudden repressive or punitive restriction or control
Quotations
Will there be any further restrictions on travel?Only if the Government imposes them, although it seems unlikely that any further clampdowns will be made on domestic rail travel in case it risks the movement of key workers and essential goods at this critical time. [...]
2020 April 8, “Network News: COVID-19: Questions and Answers”, in Rail, page 11