Rescue broken vase (4)
I believe the answer is:
save
'rescue' is the definition.
(saving is a kind of rescuing)
'broken vase' is the wordplay.
'broken' indicates an anagram.
'vase' anagrammed gives 'SAVE'.
(Other definitions for save that I've seen before include "Rescue from danger" , "Deliver - conserve" , "Rescue or salt away" , "Apart from" , "Rescue; store" .)