clacker
n.— «You may even be a clacker if you are a man, though in that case your clacking is more likely to take place in private, or at least in your own time rather than the company’s. I discovered I was one while watching the new film The Devil Wears Prada at the weekend.…A clacker is someone who makes that sound as they march across a hard floor in their lovely stilettos.» —“Big noise in fashion” by Jayne Dawson Leeds Today (United Kingdom) Oct. 4, 2006. (source: Double-Tongued Dictionary)