Yeah, I think next year I'm going to just put some raised beds there. I love raised beds, they hardly compact, easy to till, drains very well. I have seven of them, however that main plot I just haven't converted yet. it was mainly clay with some black top soil. Thing that sucks is I added compost to it before I tilled as well, what a waste. Well, I'll try my best to smooth it out, but like you said those clumps are hard as a rock! Anyway I would till in the fall but when 2-3 feet of snow fall on it every year it compacts that area.
Why buy produce when you can grow it?