The crossword solution for the term 'ISN'T TAUT' is SAGS, which stands for 'Stressed And Glued Strands'. This term is used in the field of engineering to describe a type of rope or cable that is made up of multiple strands of material that are twisted together and then glued or sealed to form a single unit. The result is a rope or cable that is stronger than a single strand and more resistant to wear and tear.