Last Saturday’s puzzle solved

Across: 1 Lost causes, 6 Plug, 9 Parma, 10 Loathsome, 12 Demonstration, 14 Absolver, 15 Chaste, 17 Libyan, 19 Colorado, 21 Weightlifting, 24 Excoriate, 25 Solar, 26 Step, 27 Here and now

Down: 1 Laps, 2 Strides, 3 Chammy leather, 4 Uplander, 5 Exact, 7 Look-ins, 8 Green heron, 11 Heath Robinson, 13 Callowness, 16 Confrère, 18 Brioche, 20 Angolan, 22 Leave, 23 Draw