The term 'Four Spot' is a reference to a card game, also known as 'Old Sledge'. It is a variation of the classic card game Euchre, and is played with four players. The term 'Four Spot' refers to the highest ranking card in the game, which is the four of any suit. The crossword solution for this term is TEA, which is an acronym for the four players in the game: Two, East, Ace, and the fourth player, who is usually referred to as the dealer.