The phrase "a stark indication of" is correct and usable in written English.
It can be used to emphasize a clear or strong sign of something, often in a serious or significant context.
Example: "The sudden increase in pollution levels is a stark indication of the environmental crisis we are facing."
Alternatives: "a clear sign of" or "a strong signal of".
"The resignation of the speaker is a stark indication of the disarray of the House Republicans," she said.
In a stark indication of widening national distress, consumer spending dipped for the first time in 17 years.
The rebuff was seen here as a stark indication of Arab displeasure with the administration's more distant approach to the Israeli-Palestinian conflict.
The news, issued without explanation on March 15th, was a stark indication of strife at the highest level of Chinese politics.It was far from unexpected.
Because people have been watching and monitoring birds for so long, they provide us with a stark indication of our impact on the countryside.
India's cities are facing the problems right now but the pollution (and its problems) is a stark indication of what many more developing nations will face in future.
So it came as an especially stark indication of how bad things have become in Zimbabwe when one of its oldest mining companies threw up its hands and said that it would shut down all three of its gold mines by April 1, after concluding that an end to the country's economic crisis was nowhere in sight.
One in three people born today will live to be 100 - just one stark indication of an ageing population.
Though this still represents a very small proportion of the overall population, it provides another stark indication of the mounting problems facing successive governments as they struggle to finance demands on the welfare state including a rising state pension bill.
There could be no starker indication of the twin strands of Harris's character, namely artlessness and single-mindedness.
In post-Soviet countries like Belarus, there are few starker indications of crisis than people waiting in lines, and the appearance of crowds gathered outside currency exchange offices has rekindled memories of shame and privation from the years just before and after the Soviet collapse in 1991.
