Magnificent, splendid (8)
I believe the answer is:
glorious
I believe this clue is a double definition.
'magnificent' is the first definition.
(I know that magnificent can be written as glorious)
'splendid' is the second definition.
(I know that splendid can be written as glorious)
(Other definitions for glorious that I've seen before include "Magnificent; our Revolution" , "Splendidly beautiful" , "Noble; splendid" , "Strikingly beautiful or impressive" , "'Magnificent, splendid (8)'" .)