Erect for the time being (3,2)
I believe the answer is:
rig up
'erect' is the definition.
The answer and definition can be both to do with creating things as well as being verbs in their base form.
Maybe there's an association between them I don't understand?
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for rig up that I've seen before include "Erect quickly and insubstantially" , "Assemble (something) in a makeshift way" , "Put (structure) together" , "Make temporary arrangement" , "fix" .)