The term PARTICIPATES IN A BEE can be broken down into two crossword solutions: SPELLS (6 letters) and SEWS (4 letters). SPELLS is a word that means to form words by arranging letters in the correct order, while SEWS is an activity that involves stitching fabric together using a needle and thread. Therefore, the complete sentence would be: 'Participates in a bee means to spell words correctly and sew fabric together.'