You can't make a silk purse out if a sows ear. If we are having traditional roast chicken, I don't use a lemon.
I do very little to it except for a bit of butter and foil on the thighs. Herbs and a few cloves of garlic in the cavity. Roast for about 90 minutes depending on size. Set aside to rest and turn up oven to crisp roast potatoes. Drain most of fat from roasting tin, sprinkle with flour stirring constantly, add some boiling water and marigold powder, salt and pepper and bung in a glass of white wine. Carve chicken onto a serving platter and tip the juices over it.
I like to make a bit of stuffing as well and serve with a bit of cranberry sauce.
We usually have it with roasties, baked chantenay Carrots (in a dish with a tight lid knob of butter, salt, sprinkle of sugar, 1 dsp water) and either peas or green beans.
When I do use a lemon (and garlic) and more lemon is when I serve it with a herbed butter and lemon sauce, usually in summer. With new potatoes, peas, asparagus.
Chop parsley, chives, thyme, and add to melted butter and lemon juice and the chicken juices (I use quite a lot of herbs for this) salt, pepper and squash the cooked garlic cloves into it.
Carve the chicken onto a platter and pour on a little herb sauce, serving the rest in a jug.