Thanks again Richard
Unfortunately I succeeded in doing the stupid thing. I wanted to temporarily remove the clock from my desktop and then restore it. I went to the gadget tray, right-clicked the clock and chose "uninstall" (that's how you do it!). Of course, it did what it said it would do and uninstalled the clock from my computer.
In the gadget tray clicking on "get more gadgets on line" and navigating to the general selection (hundreds) reveals, on page 3, item 7, a clock very similar to the one I lost. However, clicking on 'download' produces the WARNING which stopped me in my tracke.
Thanks also. I cannot locate the orininal MS clock either.