I have an idea for a puzzle (or even a series of puzzles).
As an example, there would be one long theme "answer" (i.e. ONETERMPRESIDENT) and then different clues would be scattered throughout the puzzle (BUSH, ADAMS, CARTER, TAFT, HAYES, etc.). The shorter entries would be clued so they didn't relate to the president. (i.e. BUSH = Flammable Biblical foliage). And the clue for the long answer would be something like "What 11 down, 17 across, 29 down... have in common?"
Is this the type of puzzle that could be consistently sold? Would they be considered themed or unthemed?