Stuff above re-attempted in part (7)
I believe the answer is:
overeat
'stuff' is the definition.
('overeat' can be a synonym of 'stuff')
'above re-attempted in part' is the wordplay.
'in part' indicates the answer is hidden within the clue.
'OVEREAT' can be found hidden inside 'above re attempted'.
(Other definitions for overeat that I've seen before include "Take in excess" , "Stuff oneself silly" , "pig out?" , "Indulge in gluttony" , "Gobble to excess" .)