The term TOP-GRADE is composed of four crossword solutions: ALPHA (5 letters), FINEST (6 letters), AONE (4 letters) and CLASSA (6 letters). ALPHA is a Greek letter, the first letter in the Greek alphabet. FINEST is an adjective meaning of the highest quality or standard. AONE is an adjective meaning of the highest quality or standard. CLASSA is an adjective meaning of the highest quality or standard. Together, these words describe something that is of the highest quality or standard, making TOP-GRADE an appropriate term for describing something of the highest quality.