Make Loamy soil into good condition for Fruit Plants

Ellen starts with ...
I have loamy soil in my back yard, what must I do to it that would not be so loamy any more, but also would make it have good drainage for the fruit plants that I'll be planting into it ? As I want to plant babaco & paw paw and mangoes, sour sop, sandpaper fig, etc .

Itdepends says...
Loam implies good drainage- if you are worried about drainage then I'm assuming you have a lot of clay. Compost will help- but gypsum will also help to bind the clay up.