Having always being fascinated by cryptic crosswords, and having a passing acquaintance with the rules of same, I finally tried to solve one on a (delayed) flight home recently. I managed to get about two-thirds of the puzzle solved (I guess it must have been an easy one), but there’s one clue in particular that, having looked up the answer, I can’t make head or tail of:
The clue is: “Colour a green sign about stumbling block (7,4)”
The answer, provided on the magazine’s website without explanation, is:PEACOCK BLUE
I’m extremely confused about why this is the answer. Can someone who’s wiser in the ways of cryptic crosswords help me out?