Facility for every wicked act last time with the vessel (8)
I believe the answer is:
easiness
'facility' is the definition.
(I've seen this in another clue)
'every wicked act last time with the vessel' is the wordplay.
I cannot quite see how this works, but
'act' could be 'sin' (sin is a kind of act) and 'sin' is located in the answer.
'vessel' could be 'ss' (prefix in ship names eg SS Great Britain) and 'ss' is found within the answer.
This explanation may well be incorrect...
'for' is the link.
Can you help me to learn more?
(Other definitions for easiness that I've seen before include "Nonchalance" , "Facile quality" , "Lack of difficulty" .)