Top actress excited viewers (10)
I believe the answer is:
spectators
'viewers' is the definition.
('spectator' can be a synonym of 'viewer')
'top actress excited' is the wordplay.
'excited' indicates an anagram.
'top'+'actress'='topactress'
'topactress' with letters rearranged gives 'SPECTATORS'.
(Other definitions for spectators that I've seen before include "Witnesses" , "Viewers" , "Those watching" .)