The phrase "a curtailed practice" is correct and usable in written English.
It can be used to describe a practice that has been reduced or limited in scope or duration.
Example: "Due to budget cuts, the organization has implemented a curtailed practice of employee training."
Alternatives: "a limited practice" or "an abbreviated practice".
Saturday's opening Superbike race at the Isle of Man TT has been postponed until Sunday following a week of curtailed practice sessions.
Stenson is playing virtually one-handed with his injured right wrist severely curtailing practice.
But for years the league has taken a beating from vandals, and this season its equipment was so badly damaged that organizers decided to curtail practices and events at its home field, Bicentennial Veterans Memorial Park.
"These steps will curtail practices that have put upward pressure on cable prices".
Microsoft had been critical of Google reading email algorithmically to serve better ads — Google has curtailed that practice for a subset of its users in response to a lawsuit — and here was the Redmond-based software company doing it by hand.
They use ropes to rappel down the sides of high-rises, an approach that most are loath to discuss or have abandoned because city regulations sharply curtailed the practice.
The new 80-hour workweek has curtailed that practice and increased the pressure on trainees for workflow efficiency.
After stop and frisk was deemed unconstitutional by a federal judge in 2013 because it unfairly subjected minorities to random checks, the NYPD massively curtailed the practice.
The Obama administration largely curtailed the practice of detaining women with their children in 2009, in the face of continual protests against the T. Don Hutto family detention center in Texas.
The Obama administration had sharply curtailed the practice of detaining migrant families in 2009, arguing that families were less of a priority for detention than people who pose a flight risk or a threat to public safety, according to The New York Times.
