Sentence:  Charles Wigoder, the 34-year-old chief executive of Peoples Phone, the mobile telephone business, is very much a <WSD>bright young thing</WSD>—the kind of businessman who features in magazine articles called '40 under 40', alongside other rising stars who have done unlikely things at unusual ages. 
Meaning of the word marked with <WSD> tags:  One who is youthful, clever, eager, and high-spirited in manner and attractive in appearance.