Rescues Las Vegas drunk (8)
I believe the answer is:
salvages
'rescues' is the definition.
(salvage is a kind of rescue)
'las vegas drunk' is the wordplay.
'drunk' indicates an anagram.
'las'+'vegas'='lasvegas'
'lasvegas' with letters rearranged gives 'SALVAGES'.
(Other definitions for salvages that I've seen before include "Rescues" , "dry Eliot piece" , "Saves discarded material" , "Saves from fire in Las Vegas" .)