Crossword Puzzle Plot devices?

Clue: Plot devices?

Plot devices (TWISTS with 6 letters)
Cop-show plot devices (MANHUNTS with 8 letters)
Novel-plot devices (FLASHBACKS with 10 letters)
Tormenting voice on some GPS devices (MRT with 3 letters)
Skydivers' devices (ALTIMETERS with 10 letters)
Light-regulating devices (RHEOSTATS with 9 letters)
Fastening devices (TNUTS with 5 letters)
Maybe it's all a plot? (ACRE with 4 letters)
Plotted plant? (SPY with 3 letters)
Common soap opera plot device (as in, "When will they wake up?") (COMA with 4 letters)