Raised platform (4)
'raised platform' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for dais that I've seen before include "Platform; podium" , "Said (anag.)" , "Throne platform" , "Speaker's raised platform" , "stand" .)
(Other definitions for tribune that I've seen before include "Champion of the people" , "Popular demagogue" , "basilica" , "Official in ancient Rome" , "Official upholder of the people's rights" .)
'raised platform' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for rostrum that I've seen before include "Raised platform" , "Rum rots (anag)" , "At which one may conduct" , "Platform for public speaking" , "beak" .)