I would suggest getting soil tests done. If the hardness of the soil has to do with a mineral deficiency, as happens with calcium in some clay soils, then the solution is to amend with something like gypsum dust and grit, and getting as much organic matter onto the land as possible.
I also suggest you check out the wiki for
Bryant Redhawk's list of threads on soil science, below. There are comprehensive instructions on making
compost extracts for specific situations, as well as other amendments and equipment such as subsoil compost extract injectors for improving land without busting it all up.
https://permies.com/wiki/77424/List-Bryant-RedHawk-Epic-Soil
If you need to amend a lot, or if the soil life and structure is poor, as you seem to suggest, you may want to drop a bunch of organic matter, like the
wood chips you mentioned, three inches or so deep on the clearing, along with all the amendments indicated by the soil test, and do a one-time till to get the organic matter and amendments into the soil. If there is soil life that you wish to preserve, a gentler method is to work it in with a broad fork without inverting the soil structure.
After the organic matter is in place to
feed soil bacteria, you might want to strongly consider applying compost extract to it, inoculating it with the soil bacteria and fungi you want in your soil.
If you can ask anyone about the wild
mushrooms in the area, ask if there are any Chanterelles in the area. They grow in association with some pines and oaks, and if you can encourage them, they are well worth the effort. Check the price at the market if you doubt me. You might also consider blueberries, as you had pine on the clearing at some point, and the land is likely somewhat acidic.
You might, incidentally, want to include buckwheat in your soil improvement seed mix. It likes acidic soil, starts early and grows quickly
enough to outcompete most other things.
Keep us posted, and good luck.
-CK
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
-Robert A. Heinlein