The crossword solution for the term AGREEMENT IN ARLES is OUI, which is a French word meaning 'YES'. This term is in reference to the 1888 painting by Vincent van Gogh titled 'The Night Cafe in Arles', which depicts a group of people gathered around a table in a cafe. The painting is thought to represent an agreement between van Gogh and his friend Paul Gauguin, who had recently moved to Arles. The painting is seen as a symbol of their mutual understanding and agreement.