The term 'less lengthy' can be described by two crossword solutions: 'terser' (6 letters) and 'BRIEFER' (7 letters). Both words mean the same thing, but 'terser' is a more concise way of expressing it. 'Terser' is an adjective that means 'concise and to the point, ' while 'BRIEFER' is an adverb that means 'in a shorter or less detailed way.' Both words imply that something is shorter in length than it was before.