The term 'kind of driver' can refer to a variety of different types of drivers. The crossword solutions for this term are UPS (3 letters), SLAVE (5 letters), BACKSEAT (8 letters), SUNDAY (6 letters), PILE (4 letters), and SCREW (5 letters). A UPS driver is someone who delivers packages for the United Parcel Service. A SLAVE driver is someone who oversees the work of slaves, usually in a cruel manner. A BACKSEAT driver is someone who gives unwanted advice or criticism while riding in the BACKSEAT of a car. A Sunday driver is someone who drives slowly and cautiously on Sundays. A PILE driver is a machine used to drive piles into the ground for construction purposes. Finally, a SCREW driver is a tool used to turn screws.