My marathon crossword challenge: 26 clues in 26 miles

Guardian cryptic crossword setter Paul challenged himself to write one while he ran. Here’s how he did it …You run the London marathon, you need a gimmick. For the past 22 years I have been writing the Guardian cryptic crossword under the pseudonym Paul, after my late brother, and I had already run four marathons in his memory. I realised there are about 26 clues in a puzzle, and 26 miles to a marathon. Suddenly the idea was there, and I began to regret it immediately.I asked my cro