Rise to one's feet (5)
(Other definitions for stand that I've seen before include "Base < put up with" , "Remain unaltered, tolerate" , "partnership" , "station" , "Be erect" .)
'rise to one's feet' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for get up that I've seen before include "Rise and shine!" , "Devise" , "wanting dressing" , "Arise" , "gear" .)