The crossword solutions for the term 'HE'S IN A CLASS BY HIMSELF' are 'TUTEE' (5 letters) and 'ONER' (4 letters). The term 'HE'S IN A CLASS BY HIMSELF' is an idiom meaning that someone is unique or stands out from the rest. The word 'TUTEE' is a noun referring to a student who is receiving instruction from a tutor. The word 'ONER' is an adjective meaning unique or one of a kind. Therefore, the two words together suggest that the person being referred to is unique and stands out from the rest, as the idiom implies.