Begin making a move forward to get upgrade (5)
I believe the answer is:
raise
'upgrade' is the definition.
(both can mean to promote or improve)
'begin making a move forward' is the wordplay.
I cannot quite see how this works, but
'a' is found in the answer.
'move' could be 'rise' (rise is a kind of move) and 'rise' is found within the leftover letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'to get' is the link.
(Other definitions for raise that I've seen before include "jack up" , "Produce" , "Lift; (to) levy (money)" , "Hoist" , "Gather" .)