Renovate empty Reigate shop (7)
I believe the answer is:
restore
'renovate' is the definition.
(thesaurus)
'empty reigate shop' is the wordplay.
'empty' means to remove the middle letters.
'shop' becomes 'store' ('store' can be a synonym of 'shop').
'reigate' with its middle removed is 're'.
're'+'store'='RESTORE'
(Other definitions for restore that I've seen before include "Make good, reinstate" , "Bring back, reinstate" , "Renew, repair; give back" , "Repair, renovate" , "Bring back; renovate" .)