Decamps (8)
I believe the answer is:
absconds
'decamps' is the definition.
('abscond' can be a synonym of 'decamp')
This is the entire clue.
(Other definitions for absconds that I've seen before include "Decamps" , "Flees, runs away" , "Flees to escape from a legal process" , "Bolts, runs away" , "Does a bunk" .)