'a former practice' is a correct and usable phrase in written English.
You can use it to refer to something that used to be done (or practiced) but is no longer done. For example: "The company has done away with the former practice of having employees work long hours on weekends."
Human sacrifice (purushamedha) is described and alluded to as a former practice but probably was merely symbolic.
The reference was to a former practice of blocking traffic to the town on Sundays; that practice ended in 1980.
The justices, without comment, turned away arguments that the fees were exorbitant and that a former practice of designating a portion of the fees for a federal agency's use amounted to an illegal tax.
Andy Murray will be Great Britain's trump card when he's available for Davis Cup, but this weekend in San Diego he may need a helping hand from a former practice partner of Rafael Nadal.
This practice visitor, a former practice assistant, was an experienced practice consultant trained in data collection and supporting practices in organizational changes.
It was therefore impossible to know if the original genotypes found in yam germplasm were relics of a former practice or evidence for a dynamic on-going evolutionary process.
EXTRA POINTS Tight end Darnell Dinkins, a former practice-squad player who made the team the past two seasons on special teams, fractured his right foot in a drill Monday.
"I don't think lawyers manage very well," said Alexandra Duran, a career coach in New York and a former practicing lawyer.
A former practicing physician and now the director of the Task Force for Child Survival and Development in Decatur, Ga., he followed his mother, a family practitioner, into medicine, graduating from Harvard Medical School in 1972.
A former practicing environmental engineer, Jean is a registered Professional Engineer in the states of Illinois and California.
Dr Williams had proposed a related allocation system that prioritized those patients who had not yet lived a 'fair innings.' MDH is a former practicing community physician with MBBS degrees from the University of Sydney, Australia.
