Liberal assembly ultimately supporting state? Absolutely (7)
I believe the answer is:
utterly
'absolutely' is the definition.
('utterly' can be a synonym of 'absolutely')
'liberal assembly ultimately supporting state?' is the wordplay.
'ultimately' says to take the final letters.
'supporting' says to put letters next to each other (in a down clue, some letters go below others).
'state?' becomes 'utter' (stating is a kind of uttering**).
The last letters of 'liberal assembly' are 'ly'.
'ly' put after 'utter' is 'UTTERLY'.
(Other definitions for utterly that I've seen before include "unqualified" , "Absolutely and completely" , "Completely and without qualification" , "Downright" , "Completely and totally" .)