"sharp person" is a correct and usable phrase in written English.
Generally, you can use it to describe someone who is particularly intelligent or observant. For example, you might say, "My teacher is a sharp person; she always notices when someone is not paying attention."
She's a smart, sharp person".
It does not take a very sharp person to see that we're out of our league and don't have any hope of getting into the league".
"I realized my mother is a sharp person, and she knows how to deal with people the right way," Mr. Romano said.
"What is going to cause turbulence is not just the failure of Superior, but also the kind of lending that Superior was doing before it failed," he said, adding that Ms. Pritzker has a reputation as "a very sharp person, financially.
How many of you have envied that sharp person in the room who can rattle off names, numbers and facts without hesitation?
Ms. Kalla, perhaps the sharpest person covering telecommunications at a brokerage firm today, says Verizon is, at best, a $28 stock.
It was only later, after our nonviolent revolution had succeeded, that we finally had the chance to meet Sharp in person.
This morning, Hillary Clinton revealed herself to be an excellent sidekick one with a bit more kick than most the sharp, funny person her friends have told us about.
Certainly Ryan is a sharp enough person to stick around in the new media, he long ago made a successful transition to television, but it just isn't in his character.
What you want to watch is one sharp, competent person debate a total moron who's very likable, who people love and who has every advantage in the world.
Put another way, Resistance is the sharp first-person shooter that Sony has to have to appeal to a broad swath of the hard-core gaming population.
