"clearest reflection" is a correct and usable phrase in written English.
You can use it when you are referring to a statement, image, or other physical representation that is vivid and easy to interpret. For example, "The clearest reflection of his success was the huge mansion he purchased."
The clearest reflection of this inequality in Chile can be seen in education.
It is also the clearest reflection of his own cowardice and opportunism.
The 36 governors' races provided the clearest reflection of this year's volatile electorate, which was buffeted by the threat of war in the Middle East and recession at home, angry at politics and politicians, worried about a range of local issues and grumpy over the President's backpedaling on his 1988 no-new-taxes pledge.
Secretary Powell's comments offered the clearest reflection of how discussions with Israel and Arab and European allies, continuing waves of suicide bombings and Israeli reprisals, and months of sometimes intense internal debate finally led President Bush and all of his senior national security advisers to agree: Mr. Arafat would have to go.
It is from that belief that the American spirit springs.... Sometimes that spirit is seen in triumphs like Desert Storm, but sometimes the American spirit finds its clearest reflection in the eyes of those still seeking democracy's promise -- a Russian worker, a Cambodian farmer, a black South African child.
The publication highlights the rich patrimony of the region, from the point of view of culture and ethnic diversity, making special reference towards the linguistic variants as the clearest reflection of this pluralism.
In my opinion, we got the clearest reflections on the city from Bob Cox, Free Press publisher.
More than half of all Americans say they've recently gone a year without dining out, in what may be one of the clearest reflections yet of how the listless economy is restricting choices for consumers.
One of the clearest reflections of this is the recent and dramatic rise in virtually all immune diseases with progressive modern urbanisation.
In "King Lear" he found a crystal-clear reflection of the African struggle against colonialism.
On one level, this is a clear reflection of China's growing geopolitical clout.
