You would need some pretty serious foot traffic to be able to notice an affect in most any plot.
My land scape here is a lot like yours in Northern Illinois where it is dominated by corn/soybeans and not much else for small grains ect. What I was getting at is you would probably find deer in the northern pine forests using a less traditional ‘harvest plot’ species like a clover a lot more and/or later because there is not a lot of other food sources competing against it. Where as being in an area that is dominated by corn, beans, small grains, natural browse, and acorns, the deer have many more food sources in general as well as sources that are going to become more desirable to eat at different times of the year. Like QDM said, having that rape seed in with the clover is what is going to pull deer to your plot once the clover has gone dormant. Thats because brassicas like rape really become desirable to deer after the frosts of the year, even in a food rich environment like you are in, thus drawing deer to your kill plot.
Maybe my experience with clover just isnt up to par with every one else’s in regards to it being a ‘harvest plot,’ or maybe you just really wanted clover so it comes up right away the next spring. But like you said, you are looking at a harvest plot, liked the idea of having rapeseed, and mentioned maybe turnips… maybe its worth considering having a rape/turnip or brassica blend plot; I think you would have a very hard time finding some one in the midwest who doesn’t see brassicas as a very solid ‘harvest plot’ choice. Don’t mean to lead your plans a stray, just throwing out some other ideas for you
(on a side note: the picture above is not what I see on a typical year, this is the first heavy late season use I have witnessed on my clover because my other plots got eaten out, but it also goes to show that there is no absolute concrete answer to some of this stuff)