State what usually keeps being reflected (4)
I believe the answer is:
utah
'state' is the definition.
(Utah is a US state)
'what usually keeps being reflected' is the wordplay.
'keeps' indicates the answer is hidden within the clue.
'being reflected' says the letters should be written backwards.
'hatu' is hidden within 'what usually'.
'hatu' backwards is 'UTAH'.
(Other definitions for utah that I've seen before include "America's Mormon state" , "American state, capital Salt Lake City" , "US state settled by the Mormons" , "US state, capital Salt Lake City" , "American state associated with Mormons and their faith" .)