Vessel avoided by poor sailors? (7)
I believe the answer is:
pitcher
'vessel' is the definition.
(I know that pitcher is a type of vessel)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for pitcher that I've seen before include "Large jug; thrower" , "source of drink?" , "Baseball thrower or water jug" , "American sportsman" , "able to hold a lot of beer" .)