The first clues make it clear this is a shared-word phrase puzzle, but not which ending word belongs after every clue without forcing the read. A nearby read was "a loose topic list". Bread, Rice do not immediately advertise one shared phrase slot before The proof is in the shows where the repeated word belongs.
The proof is in the behaves like a proof clue for one fixed phrase pattern, not just a broad topic match.
Another easy trap was "standalone clue meanings". Each clue has an obvious surface meaning if you read it on its own before the shared connector appears. Once The proof is in the locks the phrase position, the full board resolves under one repeated word instead of five separate definitions.
Once that phrase appears, examples like "Bread pudding" and "Rice pudding" stop feeling guessed and start reading like ordinary language under familiar phrases completed by one shared ending word.
Chocolate pudding, Plum (or Christmas) pudding, The proof is in the pudding show that the same shared word fits in the same slot across the whole board, so the answer behaves like one complete phrase family instead of a few lucky matches.
The answer was Words that come before “pudding”. More precisely, the board resolves as one shared ending word placed after each clue, not a loose topic grouping, which is why Words that come before “pudding” fits better than "a loose topic list" or "standalone clue meanings" once the full set is checked.