How big of a plot are we talking about here? Is it level ground or on a hill? Rocky? What kind and how deep is your soil? How much sunlight does it receive?
With a perennial clover, I'd probably want to start with a clean, tilled seedbed if possible. Might mean you'd have to run a push mower, then follow behind with a tiller if you can't get equipment to it. But there are plenty of things that would eliminate that as an option. If you have really coarse soils, lots of rocks, shallow soil, or much change in elevation, I would not suggest tilling and might not suggest clover.
If it isn't on heavy, level ground, I would probably try mowing it as close to the ground as possible (weed eater or push mower if you have to), broadcast the seed, then take a garden rake and rake the plot. You are not trying to use the rake for tillage, just disturb the surface a little and help distribute the seed.