The term 'LONGS IN MORSE CODE' is a reference to the Morse Code representation of the letter 'L', which consists of three DASHES. The letter 'L' is one of the most commonly used letters in the English language, and is represented by the code '---' in Morse Code. In this context, the answer to the crossword puzzle is 'DASHES', as it is the six-letter word that describes the Morse Code representation of the letter 'L'.