Hi Martyn. I think the clues in 4468 were toward the easier end of the spectrum; in terms of the unclued entries, if you guessed at 'Daughter' and 'in Time' (which wasn't a difficult guess), then you'd pretty well finished the puzzle.
in 4469 not only were some of the clues more difficult, but also the theme might not have been immediately obvious except to those hardwired to history and politics. Getting the theme early was definitely a benefit, because then it was just a question of substituting into the unsolved clash cells the possible remaining chancellor names, so by solving the theme, the rest of the puzzle was easier to solve. I think that some of the best Listeners have this quality. A little like solving a mathematical problem, once you've solved one of the unknowns, the solved unknown in itself contributes to solving the rest of the problem.
4467 was elegant but easy, but prior to that there were 2 or 3 quite difficult puzzles, including a numeric (not so much difficult as long-winded). So, overall, probably 4469 was about medium, with some quite difficult clues, but undoubtedly a well-designed puzzle.
All in all, I think that 2017 hasn't been too bad. A wide range of easy to difficult. Which was what quite a few of us were asking for with our feedback in previous years to the Listener editorial board. So, in that respect, well done them for listening...