Raise or upgrade (7)
I believe the answer is:
elevate
This clue is a double definition.
'raise' is the first definition.
(I know that raise can be written as elevate)
'upgrade' is the second definition.
(I know that upgrade can be written as elevate)
(Other definitions for elevate that I've seen before include "Uplift" , "Lift - exalt - promote - cheer" , "Raise up, hold aloft" , "To raise in level" , "Lift up or ennoble" .)