The phrase "clear nod" means that someone is expressing agreement or approval through a clear and obvious gesture, like a nod of the head. Full definition
In his only clear nod to the LibDems on PR he promised a full report on the success of the new voting methods used since Labour came to power. (conservativehome.blogs.com)
Until the back - up feature is up and running with Zero, I'd have to give Clearer the nod. (windowscentral.com)
In a clear nod to Eliot's philandering, both sides had agreed, pre-divorce, not to use the farm «in any way, including choice of visitors, that would cause any of their children emotional distress, unhappiness, embarrassment, hurt or harm in any way.» (pagesix.com)