Well, I question the reality of the idea of "utter clarity", or its usefulness to a narrative.

Common to all story-driven narratives is that the writer purposefully hides information. The author knows everything, and knows how the story will end; the characters don't. This creates suspense. That doesn't make the book a "puzzle".

Further, the choice of "dialect" has nothing to do with puzzles. Rather, it imbues the narrative with character. There's nothing in Bascule's particular language that obscures the plot. His first-person perspective certainly does, but that's because the character's understanding is more limited than the reader's. Bascule's odd and uneducated (and possibly dyslexic) choice of spelling reflects his young and carefree personality, but it also causes the reader to underestimate him at first; Bascule comes across as a simpleton, which he isn't. Feersum Endjinn is otherwise a pretty straightforward sci-fi novel.

Ultimately, good novels aren't about plot, they're about stories and how they're told. Take away that, and you're left with just plot.

As an aside, Wolfe is on another level entirely. He absolutely wrapped his stories in puzzles, and in his case the puzzle and the story are two sides of the same coin and completely inseparable. To decipher the puzzle is to understand the story. In The Fifth Head of Cerberus, for example, it's at times unclear exactly who is narrating the story.

My usage of the word utter clarity is more in contrast to Wolfe's style of narrative with hidden meanings and themes.

Basically any book that has to have the reader do extra work to solve a puzzle is using the catharsis of solving the puzzle as an illusory element that affects your bias towards the book.

If the author chooses to hide information then reveals it explicitly at a later time for the effect of suspense this to me is still a story presented with utmost clarity.

From your statements it seems as if Riddley is not exactly that type of "puzzle" book.