The term 'CERTAIN PEARS' can be solved by the crossword answer BOSCS, which is an acronym for Bartlett, Orient, Seckel, Comice, and Starkrimson. These five varieties of pears are some of the most popular types of pears grown in the United States. Bartlett pears are sweet and juicy, while Orient pears are small and crunchy. Seckel pears are small and sweet, Comice pears are large and sweet, and Starkrimson pears are tart and firm.