Come to wreck (5)
I believe the answer is:
total
I believe this clue is a double definition.
'come to' is the first definition.
('total' can be a synonym of 'come to')
'wreck' is the second definition.
(thesaurus)
(Other definitions for total that I've seen before include "Complete, entire amount" , "It might be grand" , "Aggregate amount" , "to give the final figure" , "Ruin" .)