Move, as a picture (6)
I believe the answer is:
rehang
'move as a picture' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for rehang that I've seen before include "demonstrate initial failure of capital punishment?" , "Suspend once more" , "Put up once more" , "Give further showing of picture" , "Move of pictures in a gallery" .)