"A "clan crest" (more correctly a "chief's crest") is the crest of the Chief of the Clan, inside a buckle and strap, and usually displayed with a motto or slogan. The crest is the very top part of a coat-of-arms, usually above the helm and wreath."

I took this off of another post and now can't remember who to atribute it to, sorry. but just wondered, does anyone know the origins of the buckle and strap part of a clan crest? What is the significance of the buckle and strap?
Cheers
Jim