Can anything that emits light have a shadow?

Your question is unclear, however you seem to be asking about a light source having some sort of a shadow. I would say, unless it's a star which emits light from all sides, most light sources have shadows from the light they emit themselves. Try the same, yourself and see the results for better understanding. read more

In order for light itself to cast shadow it has to block other light, two bits of light would have to interact with each other. Since light consists of photons, which are bosons, and because light carries no electric charge, light never directly interacts with other light. read more

Nevertheless, his question started bothering me, because generally everyone knows that in order to have a shadow you need a source of light and an opaque object. I know how broad of a term a fire is because of its variation, considering different gases and light it produces that may either be visible or non visible. read more