Glorious (8)
I believe the answer is:
splendid
'glorious' is the definition.
(I know that glorious can be written as splendid)
This is all the clue.
(Other definitions for splendid that I've seen before include "Magnificent, brilliant" , "Very fine, quite glorioous" , "Noble" , "Very good, terrific" , "'Excellent, glorious (8)'" .)