The crossword solution for the term 'CHECKS AT THE BAR?' is 'ESTOPS' (6 letters). Estops are legal restrictions that prevent someone from doing something. They are commonly used in contracts to limit the rights of one party, such as preventing them from taking certain actions or making certain claims. In the context of a bar, estops can be used to prevent customers from writing checks that exceed their credit limit or that are not backed by sufficient funds.