23d Somewhat flat column erected with unusual base(5) o???l 25a Son tucks into vegetables, just a little of each (7) ??s?e?? 27a Knock out a new riddle (4) ?o?? 17d "Game on" - that's unknown for one laureate (8) ?e?n????
thank you all - just to check if tennyson is right and octal is right 25a is t?s?e?s
the t being the t of octal and the last s being the s in tennyson. Which means it cant be parsley....?