Most home brew shops should have a wheat beer kit. That with some wheat malt extract. No real need for extra hops with this style, as most of the taste will come from the yeast. What you do need though is the right yeast. There are a few different ones, but they're all liquid. White Labs 300 and 380, Wyeast 3068 or 3638. Ferment at 20C if you want lots of banana, more like 16C if you want clove. Ferment for 10-14 days, no need for a secondary. Bottle/keg and drink young.