Members of staff appear to backtrack over stratagem following closure of site (9)
I believe the answer is:
employees
'members of staff' is the definition.
'employees' can be an answer for 'staff' (I've seen this in another clue). I'm unsure of the 'members of' bit.
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for employees that I've seen before include "Workers" , "Workforce" , "People on the payroll" .)