I have dug up a section of my lawn to apply gravel. The soil is now very lumpy and I am wondering how to flatten it out?
Get a pair of wellies on, a rake and a spade. Rake it as level as you can, use the spade to bash any larger lumps, and then walk all over it, not missing even an inch - this should break up the clods and also reveal any soft, sunken parts. Now rake it again and walk over it again, repeat if necessary. I hope this area isn't absolutely huge... otherwise its a machine with a roller on it. Not to be done if its currently waterlogged or frozen, wait for conditions to improve if that's the case.