Suffering; lasting (8)
I believe the answer is:
enduring
I believe this is a double definition.
'suffering' is the first definition.
('endure' can be a synonym of 'suffer')
'lasting' is the second definition.
(enduring is a kind of lasting)
(Other definitions for enduring that I've seen before include "Lasting a very long time, despite hardship (8)" , "stable ..." , "showing toleration" , "Lasting' tolerating" , "Eternal" .)