Change the decor of (4)
(Other definitions for redo that I've seen before include "Make anew" , "Start again" , "Have second thoughts" , "Carry out again" , "Create again" .)
'change the decor of' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for remodel that I've seen before include "Produce new arrangement" , "Reconstruct, recast" , "style again" , "Make over" , "Reshape" .)