Take steps to perform on stage (3)
I believe the answer is:
act
I believe this is a double definition.
'take steps' is the first definition.
('act' can be a synonym of 'take steps')
'perform on stage' is the second definition.
(I've seen this before)
'to' acts as a link.
(Other definitions for act that I've seen before include "Assumed attitude" , "Perform theatrically" , "Do something (on stage?)" , "Bill successfully prosecuted" , "Perform(ance)" .)