"We're a pretty clever invention, miss, and you can't get on without us," he answered, with his nose in the air.
It's quite a clever invention, which has streamlined our mass dredging operations considerably.
It was the clever invention of a diabolical mind.
There are no clever inventions, because most inventions bring more unhappiness than pleasure.
If so, the story was a clever invention on his part, well designed and thought out.
Maybe this story also was only a clever invention.
What you would have would not be a clever invention.
Even if you're not a serious d-i-yer, you're bound to be aware of this clever invention.
It is a clever invention, but it shouldn't fool your own instruments.
He's interested in complicated figures and clever inventions.