Temporary, improvised (9)
I believe the answer is:
makeshift
I believe this is a double definition.
'temporary' is the first definition.
(similar in meaning)
'improvised' is the second definition.
(I know that improvised can be written as makeshift)
(Other definitions for makeshift that I've seen before include "temporary expedient" , "Temporary or improvised substitute" , "(Acting as) temporary substitute" , "Serving as a temporary and less adequate substitute for something" , "Rough-and-ready" .)