SOLUTION TO PRIZE CROSSWORD No 15,768

ACROSS: 1 Tigress. 5 Optics. 9 Salient. 10 Derange. 11 Use. 12 Emplacement. 13 Other. 14 Wallpaper. 16 Man Friday. 17 Larva. 19 Respiration. 22 Nit. 23 Sea slug. 24 Prolong. 26 Kettle. 27 Treason. DOWN: 1 Testudo. 2 Golden handshake. 3 Ewe. 4 Sit-up. 5 Old Bailey. 6 Three. 7 Contemporaneous. 8 Better. 12 Error. 14 Wide-angle. 15 Pylon. 16 Morose. 18 Antigen. 20 Inlet. 21 Input. 25 Ode.