The phrase "a combination of clever" is correct and usable in written English.
It can be used when describing something that is made up of clever elements or ideas, often in a creative or innovative context.
Example: "The project was a combination of clever design and advanced technology, resulting in a truly unique product."
Alternatives: "a blend of smart" or "a mix of ingenious".
— and is filled with a combination of clever quips, catchphrases and campy drama.
Von Ahn believes its success is down to a combination of clever, intuitive design aspects and constantly evolving teaching methods.
But Samsung has proved that a combination of clever brand-building and well-designed, innovative products can work miracles.
Perhaps the new incarnation of Kangaroos will earn a similarly loyal following through a combination of clever ads, quality products and word of mouth.
Either way, the solution calls for a combination of clever engineering, technology and social tools.
SpeakerText, a scrappy startup that automates video transcriptions through a combination of clever algorithms and crowdsourcing, raised $600,000 from a group of angel investors led by Mitch Kapor.
"Taken together, they display an impressive combination of clever empiricism and serious-minded wonkery.
With a combination of power and clever angle and spin, he can win points outright with the serve, called an "ace" if the opponent cannot get his racket on the ball and a "service winner" if the opponent reaches it but cannot play it, or the server can force such a weak return that his second shot is an easy "kill".
Five years later, and a combination of flukes and clever strategy turned Mr Hollande into head of state.
It was a combination of events which clever inventors of looms and spinning machines then turned into an industrial revolution, employing thousands of people in the dense Lancashire mill towns which sprang up in the 19th Century.
Through a combination of luck and clever management practices, however, the Cellar successfully weathered the storm.
