Coming onto the stage, fill with delight (8)
I believe the answer is:
entrance
I believe this is a double definition.
'coming onto the stage' is the first definition.
(I've seen this before)
'fill with delight' is the second definition.
(I've seen this before)
(Other definitions for entrance that I've seen before include "Ingress" , "Coming upon stage - fill with rapturous delight" , "foyer?" , "Capture" , "Hold" .)