'enduring icon' is correct and usable in written English.
You can use it to describe something or someone that has been important or well known for a long period of time. Example sentence: The Mona Lisa is an enduring icon in the art world.
It was a decision that gave modern teenpop its greatest and most enduring icon.
Richard Petty, the sport's most enduring icon of victory and decency, is quoted as advising drivers to "cheat neat".
Apart from a few grimy clips of film a century old, there's no means of judging how or why Houdini became the supreme, enduring icon of escapology and illusion.
Mr. Greenwood plays the president and enduring icon in "13 Days," a dramatization of the Cuban missile crisis that goes into wide release today after its Oscar-qualifying runs in New York and Los Angeles over the holidays.
As it happened, not quite 18 months later, he would be dead, having created a small but memorable body of work that has made him an enduring icon.
The bed that has become the most enduring icon of 1990s British art, now that Damien Hirst's poorly preserved shark looks like a shrivelled nautical antiquity.
Edgerton's stop-action photographs remain enduring icons of modern experience.
"What there is to lament is that there are very few enduring icons of urban culture.
Through Jan . 27Dr. Harold Edgerton's stop-action photographs, including the famous "Milk-Drop Coronet," remain enduring icons of modern experience.
The bears have been enduring icons in climate campaigns conducted by such groups, with at least three groups seeking contributions through "adopt a polar bear" programs.
It was the final film for both Gable and Marilyn Monroe, two of Hollywood's most enduring icons, and it was one of the last films for the gifted Montgomery Clift.
