Have you seen the kick and tug at the straps of the mettled pony in stables that betrays the mishandling of him by his groom?

My spirit resembles nothing else so much as a mettled steed, whose curvettings are restrained by an inexorable rein.

The wind was steady, and her crew held her in hand, as a skilful rider governs the action of a fiery and mettled steed.

With what concert does one's heart beat to the free stride of a mettled charger!