Clatter, yes. Metal, no.

The sound of many dry leaves moving along concrete with the moving air is clatter-like. Pavement and leaves are hard in different ways, but at the moment of meeting like that, they make percussion.

Before humans learned to pave large areas, that exact sound didn't exist. If there were large stone expanses in nature, there weren't enough trees dropping leaves to make the sound. Humans, trying to have it both ways, have many trees close to lots of human made artificial rock, and so the sound.