Ends interim arrangement (7)
I believe the answer is:
termini
'ends' is the definition.
(terminus is a kind of end)
'interim arrangement' is the wordplay.
'arrangement' indicates anagramming the letters.
'interim' with letters rearranged gives 'TERMINI'.
(Other definitions for termini that I've seen before include "Final parts" , "limits of service" , "Interim (anag.)" , "Paddington, Waterloo, etc" , "Line ends" .)