Lighting the stage (7)
I believe the answer is:
landing
This clue could be a double definition.
'lighting' is the first definition.
The definition and answer can be both acts as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'the stage' is the second definition.
(thesaurus)
Can you help me to learn more?
(Other definitions for landing that I've seen before include "Top of a staircase" , "somewhere between flights" , "Level area between stair flights" , "Touchdown" , "Reaching the shore" .)