what driver doesn't have a license?

The kind found in a golf bag, or the program that tells your printer and other peripheral devices how to work with your computer, as in

http://www.webopedia.com/TERM/D/driver.html

screwdriver

A driver without a license is usually someone who is either not legally eligible to drive or has had their license revoked or suspended. This could include individuals who are underage or have never obtained a driver's license. To confirm whether a specific person does not have a license, you would need to check their records with the appropriate licensing authority. In most countries, this would be the Department of Motor Vehicles (DMV) or similar government agency responsible for issuing driver's licenses. Contacting the DMV and providing the necessary information or conducting an online search on their website can help determine if a person does not possess a valid driver's license.