Barleywine
I don't use clarifiers because I don't need them. But ideally they can "flesh out" the meaning of an ambiguous card, especially an "outcome" card. Unfortunately, too often they are used because the reader hasn't learned the card meanings well enough, isn't prepared to make the effort to think deeply about all aspects of the original card, or simply doesn't like the answer the first card provided. I think in many cases they just increase the confusion. If I want to see the outcome as a continuing story, I will pull more cards in the initial spread for this purpose.