The term 'Christmassy' is a combination of the words 'CHRISTMAS' and 'FESTIVE'. It is used to describe something that is related to the CHRISTMAS holiday season, such as decorations, music, or activities. The crossword solution for this term is 'FESTIVE', which is a seven-letter word that means joyous, merry, or jubilant. Therefore, the term 'Christmassy' can be used to describe something that is joyful, merry, and jubilant in relation to the CHRISTMAS holiday season.