The crossword solution for the term 'Nails Down' is 'ICES'. This is an acronym which stands for 'Identify, Clarify, Establish, and Secure'. It is a process used in problem solving and decision making to ensure that all aspects of a situation are considered before a final decision is made. The process involves identifying the problem or issue, clarifying the facts, establishing criteria for making a decision, and securing agreement on the decision. This process helps to ensure that all stakeholders are involved in the decision-making process and that the best possible outcome is achieved.