Not Burning a Wood Fire Pizza
A pizza burning on top while being undercooked on the bottom can be caused by uneven heat in the oven, as well as a pizza being overloaded with toppings. The former can be an issue with the oven itself, or can indicate that you are not drawing enough hot air over the top of the pizza. The latter is self-explanatory.
A trick sometimes used by pizzaiolos to prevent the bottom of the pizza from burning when the top has not cooked enough yet, is to lift the pizza closer to the top of the oven using the peel. This way, the top of the pizza gets some extra heat, while the cooking on the bottom slows down.
This image, which stems from a pizza oven manufacturer's Instagram post shows what I mean. The post also explains what is happening, and introduces the wonderful term &quot;doming&quot; for this practice.