Allude to State's vision (4)
I believe the answer is:
cite
'allude to' is the definition.
(thesaurus)
'state's vision' is the wordplay.
'state's' indicates a 'sounds like' (homophone) clue (I've seen 'stated' mean this).
'vision' becomes 'sight' ('sight' can be a synonym of 'vision').
'sight' sounds like 'CITE'.
(Other definitions for cite that I've seen before include "Repeat a passage from some written work" , "Quote (a reference)" , "Quote (an author)" , "Summons - quote" , "Use quotations" .)