Instructional sequence (5)
I believe the answer is:
steps
'instructional sequence' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for steps that I've seen before include "See 2" , "Measures taken" , "Paces; measures" , "Buchan's 1915 novel has 39 of them" , "Small ladder" .)