Renovate and stash away again (7)
I believe the answer is:
restore
I believe this clue is a double definition.
'renovate' is the first definition.
(thesaurus)
'stash away again' is the second definition.
('store' can be a synonym for 'stash away' so perhaps 'restore' is OK for 'stash away again')
'and' acts as a link.
(Other definitions for restore that I've seen before include "hand it back?" , "Bring back, reinstate" , "Repair, put back" , "Bring back to original state" , "Repair, renovate" .)