Re(3): Listener 4419 Common Acid Test by Stan IP: 220.127.116.11 Posted on November 1, 2016 at 04:41:01 PM by Russ Cook
Having first solved a number of the early clues I was able to guess the theme reasonably quickly, although it took quite a while to determine the size of the top left cell and to confirm that was the only cell of a different size.
I too had to rewire the 'crossword symmetry' part of the brain.
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