Raised platform said to need adjustment (4)
I believe the answer is:
dais
'raised platform' is the definition.
(I've seen this before)
'said to need adjustment' is the wordplay.
'to need adjustment' indicates an anagram.
'said' anagrammed gives 'DAIS'.
(Other definitions for dais that I've seen before include "Speaker's raised platform" , "support for speaker" , "device to give some an uplift at conference?" , "Raised floor" , "Throne platform" .)