The phrase "a small clientele and" is correct and usable in written English.
It can be used when describing a limited number of customers or clients that a business or service has.
Example: "The boutique has a small clientele and focuses on providing personalized service to each customer."
Alternatives: "a limited customer base" or "a modest group of clients".
Because the store carries cutting-edge men's wear, Mr. Steel said he catered to a small clientele and knew most of his customers by name, as well as the history of their purchases.
You've hustled, and built up a small clientele, and you know if you could borrow $3,000 to buy more lawn mowers and trimmers, you could hire two friends and double your business.
Grunneger Power and Lochem Energie have a relatively small clientele, and their objective is to grow and to ensure a solid financial basis for their organizations.
A leg of lamb from Breezy Hill - a nearby farm where lamb, turkeys and chickens are raised for a small clientele - will be studded with sprigs of marjoram, thyme, rosemary and little cloves of garlic, to be the centerpiece of the evening meal.
Salesgenie aims at much smaller clientele and competes in a less crowded field.
Pamplemousse, has a small but dedicated clientele and ways of dealing with greedy restaurateurs who try to steal her secrets.
She had come to Como in the North of Italy & established a small, exclusive clientele.
The old Laurier BBQ, with its authentically retro, wood-paneled dining room adorned with hunting memorabilia, catered to a small, loyal and largely older clientele.
Most of the clientele look like students, with a small punk and gay, lesbian, bisexual and transgender crowd.
To run a small landscaping business for residential clientele, you can start part-time with a truck, and some essentials such as a lawnmower, edger and hand tools.
A department store, which once sold everything from sushi to plus-fours, is now devoted entirely to one product books.The new Waterstone's is almost next door to Hatchards, a mere five-storey bookshop, with a well-established clientele, and two smaller bookshops.
