The term 'AT A SPECIFIC TIME' can be summarized as 'at a certain point in time'. This phrase is often used to refer to a particular moment or period of time that has been predetermined or agreed upon. It is also used to indicate that something will happen at a certain point in time, such as a deadline or appointment. The crossword solution for this term is 'THEN', which is an adverb that is used to refer to a specific point in time in the past, present, or future.