Were crooked and ended in jug (4)
I believe the answer is:
ewer
'ended in jug' is the definition.
'ewer' can be an answer for 'jug' (type of vessel). I'm not certain of the 'ended in' bit.
'were crooked' is the wordplay.
'crooked' indicates anagramming the letters (a crooked or disrupted version of the letters).
'were' with letters rearranged gives 'EWER'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for ewer that I've seen before include "A type of jug" , "Large water jug" , "Large pitcher" , "Were (anag)" , "Big jug" .)