"render the idea" is a correct and usable phrase in written English.
It is often used to mean convey, express, or explain an idea or opinion. For example, "The writer renders her opinion in a memorable and clear manner."
Deirdre Parker, a transit spokeswoman, said that the plan was under review, but warned that ongoing construction and congestion at the station may render the idea unworkable.
The Hagel-Landrieu bill, first of all, would raise the ceilings on individual and PAC donations so high as to render the idea of a limit meaningless.
The Gaylord family wanted to add some fractional units to the Jerome, and the City threw up enough hurdles to render the idea moot.
One way to bring people together, from a modularity point of view, could be to render the idea of mixing and matching into the arrangement of people.
This involves lightning conductors, but he's prepared to agree that the infrequency of lightning coupled with the huge numbers of conductors needed renders the idea impractical.
Indeed, it contains the potential – or alternately, the threat – of rendering the idea of a vocation itself an industrial-age artefact.
"Her admiration for what she perceived as an ordinary life was so ardent that it rendered the idea of banality transcendent".
Io is the most volcanic object in the solar system; the mere proximity of such an excitable object to Europa suddenly rendered the idea of subsurface water more imaginable.
For me, the revolving-door mentality in baseball today has rendered the idea of loyalty to a team virtually meaningless, and has all but eliminated my passion for the game.
For a moment, it looked as if Katrina rendered the idea obsolete, but the pair saw dramatic opportunity in the rebuilding efforts of the citizenry, as well as an opportunity to shine a light on an often misrepresented and unique corner of America.
An old anecdote renders the idea of what we mean by "the phantom of the structure": a hammer is essentially composed of two parts: the handle and the head.
