ACROSS:13 Sharpen your first search through labyrinth (9). I have ????????b 15 Stake covers a number of columns (5). I have ??t?e. 16 Vital organ's actual name is concealed (5). I have ??n?? 23 Neighbour of Carthage given nautical protection? (5) I have ????a 24 Number for Venetian painter detailed in register (7). I have ??t?t?? 25 Keeping cool, there's nothing like it! (4,3) I have ????,??e 26 Shot through the head (13). Ihave ??c?p????????