Nabisco cracker brand (4)
I believe the answer is:
ritz
'nabisco cracker brand' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ritz that I've seen before include "The Diamond as Big as the ___ (F. Scott Fitzgerald)" , "(Expensive) London hotel" , "Piccadilly hotel" , "Grand hotel" , "Luxurious hotel" .)