Once again state treasures will be moved, not for all to see (8)
I believe the answer is:
reassert
'treasures will be moved not for all to see' is the definition.
I can't tell whether this defines the answer.
'once again state' is the wordplay.
'once again' becomes 're' (I've seen this in other clues).
'state' becomes 'assert' (I've seen this before**).
're'+'assert'='REASSERT'
Can you help me to learn more?
(Other definitions for reassert that I've seen before include "Pronounce once more" , "Make one's presence felt once more" , "Again make statement" , "State with force" .)