Noun

(en noun)

A person who practices a profession or art, especially law or medicine.

*{{quote-magazine, date=2014-06-21, volume=411, issue=8892, magazine=(The Economist)

, title= Magician’s brain , passage=The [Isaac] Newton that emerges from the [unpublished] manuscripts is far from the popular image of a rational practitioner of cold and pure reason. The architect of modern science was himself not very modern. He was obsessed with alchemy.}}

One who does anything customarily or habitually.

(label) A sly or artful person.

* John Whitgift

the men of St. John's were cunning practitioners , in shaking off their Masters and Heads.

Noun

(wikipedia employer) (en noun)

A person, firm or other entity which pays for or hires the services of another person.

*

, title=(The Celebrity), chapter=10 , passage=The skipper Mr. Cooke had hired at Far Harbor was a God-fearing man with a luke warm interest in his new billet and employer , and had only been prevailed upon to take charge of the yacht after the offer of an emolument equal to half a year's sea pay of an ensign in the navy.}}

* , (1911-1977)

It might be said that it is the ideal of the employer to have production without employees and the ideal of the employee is to have income without work.