The term WHITE PARTNER can be broken down into two crossword solutions: YOLK (4 letters) and SAJAK (5 letters). YOLK is the yellowish part of an egg, which is often used as a metaphor for a partner or companion. Pat Sajak is an American television personality best known as the host of the game show Wheel of Fortune. He has been hosting the show since 1983 and is often referred to as the 'White Partner' of Vanna White, the show's co-host.