States further that many are in sad disarray (4)
I believe the answer is:
adds
'states further' is the definition.
(I've seen this in another clue)
'many are in sad disarray' is the wordplay.
'many' becomes 'D' (Roman numeral for 500).
'are in' means one lot of letters goes inside another.
'disarray' is an anagram indicator.
'sad' with letters rearranged gives 'ads'.
'd' put inside 'ads' is 'ADDS'.
'that' acts as a link.
(Other definitions for adds that I've seen before include "Puts in; tacks on" , "Puts (numbers) together" , "Appends or increases" , "Finds the sum (4)," , "Contributes further" .)