Nonstop flight (9)
'nonstop flight?' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for escalator that I've seen before include "financial clause" , "Moving stairway" , "Lift" , "it moves up and down" , "Moving staircase" .)
(Other definitions for direct that I've seen before include "Take charge, of a company or film say" , "without ambiguity" , "Straightforward; control" , "Point the way" , "Frank; undeviating" .)