Make secure, with roles reversed (5)
I believe the answer is:
strap
'make secure' is the definition.
(strap can mean to secure with straps)
'roles reversed' is the wordplay.
'roles' becomes 'parts' ('part' can be a synonym of 'role').
'reversed' says the letters should be written in reverse.
'parts' back-to-front is 'STRAP'.
'with' is the link.
(Other definitions for strap that I've seen before include "Restraining fastener" , "loopy band" , "Security device" , "Belt; leather strip" , "something to hang on to" .)