Rick, miserable individual, with name for wasting time (6)
I believe the answer is:
wrench
'rick' is the definition.
('wrench' can be a synonym of 'rick')
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for wrench that I've seen before include "Jerky pulling movement" , "Sort of spanner - twist it" , "Tear away" , "Yank" , "Pull awkwardly (away)" .)