Supposedly it will only injure white clover unless you use a high concentration and spray it more than once. It sounds like a waste of money. Instead, wait until there's a hot day and spray it with a concentration of water, vinegar, and dish soap. Go heavy on the vinegar. You need to boost the nitrogen content in the soil in order for grass to grow there instead. Then you can sow grass seed over the area. Clover is awesome though. Lots of livestock will graze on it and it benefits the soil by fixing the nitrogen content over time. People used to purposefully sow clover seeds back in the day.