If you are breaking ground for the first time, with no soil amendments you can't beat cow peas. Clover needs a bit more fore thought. For clover you need to get the PH in line and get weeds under control.Clover is a fall / winter plant. Cow peas are trouble free but will be done at first frost. Get familiar with herbicides. You get results in line with your effort.
If you want to have a fall attraction plot, I've done WR and RC within the woods in early Sept. Both grow well as leaves soon drop. Add couple bags of 19-19-19 and bag of Lime/ 100 yds of strip. Try to do before rain. I've still got RC growing in those areas after not doing the last 3 years. If you can cut trees down to open understory, success will improve. Good luck.
I try NOT to work the soil in a wooded plot. Top soil tends to be pretty shallow and the soil as a whole tends to be pretty poor from a pH and nutrient perspective.
Look into "throw and mow" methods... Small seeds (clover, chicory, cereal grains, brassica) tend to work the best.
Sunlight is the key...
Here is a plot I carved out of a small woodlot that the logging created a nice opening and I then "polished" it a little bit and put in a small clover/chicory plot. I did not work the soil....I simply burned the leaf litter, sprayed the weeds and spread the seed. Rain will drive the small seed into the ground.
Clover is a good idea, it grows like weeds, but you will need at least 50% sunshine through the trees to your plot. I like to start clover with buckwheat for a nurse crop, buckwheat releases nutrients in the soil.