Water streaming from cracked ewers (5)
I believe the answer is:
weser
'water streaming' is the definition.
The definition suggests a singular noun which matches the answer.
'cracked ewers' is the wordplay.
'cracked' is an anagram indicator.
'ewers' with letters rearranged gives 'WESER'.
'from' acts as a link.
Can you help me to learn more?
(Other definitions for weser that I've seen before include "German runner" , "Er, sew up the German river" .)