TWO- SPEED

ACROSS: 6 Grenade; 7 Nylon; 9 Amp; 10 Annotator; 12 In operation; 15 Philanderer; 17 Centipede; 19 Pat; 21 Idiot; 22 Another. DOWN: 1 Frame; 2 End; 3 Eden; 4 Dynasties; 5 Solomon; 8 Course; 11 Inflation; 13 Pin- ups; 14 Threads; 16 Waves; 18 Dent; 20 Sty.