Absolute wreck (5)
I believe the answer is:
total
I believe this is a double definition.
'absolute' is the first definition.
(similar in meaning)
'wreck' is the second definition.
(to total a vehicle is to damage it beyond repair)
(Other definitions for total that I've seen before include "Including all" , "wreck" , "Final tally" , "Comprising the whole" , "Complete; add up" .)