Current rose alarmingly employing current revival (12)
I believe the answer is:
resurrection
'revival' is the definition.
(I know that resurrection is a type of revival)
'current rose alarmingly employing current' is the wordplay.
'alarmingly' indicates an anagram (I've seen this in other clues).
'employing' indicates putting letters inside.
'current' becomes 'I' (symbol for electric current).
'current'+'rose'='currentrose'
'currentrose' anagrammed gives 'resurrecton'.
'resurrecton' enclosing 'i' is 'RESURRECTION'.
(Other definitions for resurrection that I've seen before include "Christ's rising after his crucifixion" , "A rising from the dead" , "Revival" , "Action of restoring to life" , "Act of restoring to life" .)