The term ARTY SENDOFF is a combination of two words, 'ARTY' and 'sendoff'. The first word, 'ARTY', is an adjective that means having or showing a great deal of artistic skill or taste. The second word, 'sendoff', is a noun that refers to a farewell ceremony or celebration. The crossword solution for this term is CIAO, which is an Italian word meaning 'GOODBYE'. Therefore, the term ARTY SENDOFF can be interpreted as a creative and artistic way to say GOODBYE.