Endorse Publicly is a phrase that means to publicly support or approve of something. It is often used in the context of politics, when a politician or public figure endorses a candidate or policy. The term can also be used in other contexts, such as when a company endorses a product or service. The SECOND in this crossword solution is the word 'OK', which is an informal way of expressing approval or agreement. Therefore, the complete phrase for this crossword solution is 'Endorse Publicly OK'.