The term 'ONE OF TWELVE' can be broken down into three crossword solutions: MONTH (5 letters), APRIL (5 letters), and DIGIT (5 letters). The solution MONTH refers to the twelve months of the year, with APRIL being one of them. The solution DIGIT refers to the number 12, which is composed of the digits 1 and 2. Therefore, the term 'ONE OF TWELVE' can be interpreted as APRIL being one of the twelve months of the year, and the number 12 being composed of the digits 1 and 2.