SOLUTION TO PUZZLE No. 8570:

ACROSS: 1 Sharp fall; 6 Strum; 9 Erica; 10 Putting on; 11 Disengaged; 12 Edna; 14 Cricket; 15 Scoffed; 17 Informs; 19 Reserve; 20 Over; 22 Waste paper; 25 Authorise; 26 Woods; 27 Apart; 28 Net profit.

DOWN: 1 Spend; 2 A bit stiff; 3 Plain skirt; 4 Asphalt; 5 Litters; 6 Slip; 7 Rigid; 8 Manhandle; 13 Horsepower; 14 Chipolata; 16 Fireproof; 18 Station; 19 Retreat; 21 Extra; 23 Reset; 24 Port.