The term 'SOME CLOUDS' can be broken down into two crossword solutions: CUMULI (6 letters) and STRATI (6 letters). CUMULI are clouds that form in the shape of large, fluffy piles or heaps. They are usually composed of water droplets and are often seen on sunny days. STRATI are clouds that form in layers and are usually composed of ice crystals. They are often seen on cloudy days and can produce rain or snow.