Solution: New words can be made by adding IN/OUT to the beginning of thirteen of the across entries- 1A, 4A, 8A, 20A, 23A, 30A, 31A, 32A, 36A, 37A, 51A, 52A, 53A. The answer is In-N-Out Burger. I’m sure not everyone has heard of this fast-food restaurant, but was hoping if you searched in, out and fast food you would get it.