Added to hotel, de luxe (5)
I believe the answer is:
plush
'de luxe' is the definition.
(both can mean fancy or high-quality)
'added to hotel' is the wordplay.
'added to' becomes 'plus' (I've seen this before).
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'plus'+'h'='PLUSH'
(Other definitions for plush that I've seen before include "Fabric with a long velvety pile" , "Fabric; richly luxurious" , "Rich fabric" , "Cut pile, softer than velvet" .)