Could this clause be interpreted in both Adverbial clause and noun clause?
Maria will tell you when David gets home - In this one, Maria says that she will tell someone when David gets home.
Maria will tell you when David gets home - In this one, Maria says that she will tell her friend something only when David gets home.
These both are examples of adverbial and noun clauses, the first one is a noun clause (When David gets home is the direct object of the verb tell) and the second one is an adverbial clause.
Could they be possible confused? I guess the only way to differ both would be if it were: Maria will tell you it when David gets home - since "it" is the direct object.