Not for one time only (8)
I believe the answer is:
reusable
'not for one time only' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for reusable that I've seen before include "Not throw-away" , "Non-disposable" , "Not disposable" , "Of repeated utility" , "Able to be recycled" .)