The phrase "clear testament" means providing evidence or proof that is easy to understand and cannot be doubted. It refers to something that clearly shows or proves a particular fact or truth. Full definition
Our annual Italian heritage event at Gracie Mansion drew hundreds more this year than it did last year, a clear testament to this mayor's strong relationship with his roots and our city's Italian community.» (newyork.cbslocal.com)
Apart from serving as an AMG hallmark confirming superlative precision and production quality, the AMG engine plate bearing the engine technician's signature is also a clear testament to the peerless DNA of Mercedes - Benz's high - performance brand. (motor-prime.com)
The game also looks stunning this time around and the sheer number of zombies on screen at any one time is clear testament to the increased power of the current generation. (player2.net.au)