The term 'junior, often' can refer to a variety of different things. In the context of a crossword puzzle, it could refer to a person who is the NAMESAKE, SCION, HEIR, or SON of another person. A NAMESAKE is someone who is named after another person, usually a parent or ancestor. A SCION is a descendant of a wealthy or noble family. An HEIR is someone who is entitled to inherit property or a title from another person. A SON is a male offspring of a parent. An elderson is an older person, usually a parent or ancestor.