“Each clue gives an answer of nine letters to be entered clockwise or anticlockwise around the numbered square, starting anywhere and with one letter of the word placed in the central square. The 24 unchecked perimeter/corner letters might give PAN A LATE SOLUTION OF BLOCKS. Several of these can be deduced from entries and the remaining few ambiguities can be resolved by consideration of the familiar pattern of BLOCK LETTERS revealed in the numbered squares.
Chambers Dictionary (2016) is recommended.”