The term 'Clipart' refers to images that can be copied from a source and easily pasted into a document in a computer. An example of such art would be a stylized letter or a picture of a Christmas tree that could be pasted on a Christmas card or menu.
Don't have an art student draw it for you. Just because someone is artistically inclined doesn't make them a good cartoonist, and it doesn't mean they understand the production aspects required of a brand mascot to make it functional across all marketing venues.
All images that enter your computer have an extension relating to what format they are in. You may have an image from a scan, a clipart disk or downloaded from a clipart service. Some are .eps and .wmf files (Vector line format more common for logos or line drawings) and others jpeg an .gif (Bitmap pixel photos and illustrations)