Raise cap in support of socially acceptable state (4)
I believe the answer is:
utah
'state' is the definition.
(Utah is an example)
'raise cap in support of socially acceptable' is the wordplay.
'raise' says the letters should be written in reverse.
'cap' becomes 'hat' (I've seen this before).
'in support of' is a charade indicator (letters next to each other) (I've seen this in other clues).
'socially acceptable' becomes 'u'.
'hat' back-to-front is 'tah'.
'tah' put after 'u' is 'UTAH'.
(Other definitions for utah that I've seen before include "The American Morman state" , "The American Mormon state" , "American state associated with Mormons and their faith" , "US state, capital Salt Lake City" , "Mormons are found here in a hut" .)