Greta of "Grand Hotel" (5)
I believe the answer is:
garbo
'greta of grand hotel' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for garbo that I've seen before include "film star? Yes and no" , "Greta -, Swed. actress" , "film-star" , "Swedish actress who wanted to be alone" , "Swedish film star who wanted to be alone" .)