Plot surprises (6)
I believe the answer is:
twists
'plot surprises' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for twists that I've seen before include "Interweaves or gives spiral form to" , "Winds, turns around" , "Twines together" , "gets another card turned over" , "Dances and turns as Chubby Checker used to" .)