Withered rose rescued in part (4)
I believe the answer is:
sere
'withered' is the definition.
(I know that withered can be written as sere)
'rose rescued in part' is the wordplay.
'in part' indicates the answer is hidden within the clue.
'SERE' is hidden within 'rose rescued'.
(Other definitions for sere that I've seen before include "Dry, withered" , "Dried up, withered" , "Erse (anag.); withered (literary)" , "'Dried-up, shrivelled (4)'" .)