Stately, splendid (5)
I believe the answer is:
grand
I believe this is a double definition.
'stately' is the first definition.
(I've seen this before)
'splendid' is the second definition.
(I've seen this in other clues)
(Other definitions for grand that I've seen before include "Stately - splendid" , "PS1000 (sl.)" , "Designed to impress" , "1000, colloquially" , "Imposing; PS1,000" .)