The phrase "a curbing of" is correct and usable in written English.
It can be used to refer to the act of limiting or restricting something, often in a formal or policy-related context.
Example: "The government announced a curbing of emissions to combat climate change."
Alternatives: "a reduction in" or "a limitation on".
Yet a curbing of unpaid internships would be a real blow to Britain's entrenched class system.
For those whose lives have changed significantly, the most concrete alteration has been a curbing of their movement and spending.
Perhaps ultimately legal actions will lead to a curbing of sites with no redeeming values that incite violence.
Real GDP rose by over 12% in 2007, thanks to a surge in foreign investment, a liberalisation programme and a curbing of once-endemic corruption.
The report also called for a voluntary ban on TV commercials promoting food deemed to be unhealthy, as well as a curbing of celebrity endorsements of unhealthy food, such as Gary Lineker's work with Walkers.
Mrs. Aquino's conciliatory overture to the insurgents must be accompanied by a curbing of the military abuses that have stirred discontent, particularly in areas where poorly trained and equipped troops have exercised often-unchecked power.
There will be, she added, "a thoughtful curbing of rambunctious pay packages".
Ironically, given that the entire thing is an ideological curbing of our freedoms, business secretary Sajid Javid justified it as a necessary guard against "militants".
Finally, experimental results validate the behavior of the prototype for, both, obstacle surpassing and posture control when the wheelchair prototype ascends a curb of 180 mm.
In 2009, President Susilo Bambang Yudhoyono became one of the first developing country leaders to pledge control of greenhouse gas emissions, promising a curb of 26% by 2020 - or by 41% if enough international assistance were forthcoming.
Super injunctions have also been raised in the Houses of Parliament as an example of a curb on the freedom of the press by activist judges.
