Crossword Genius

Cracked ewers containing dirty water? (5)

Ross

I believe the answer is:

sewer

I'm a little stuck... Click here to teach me more about this clue!

'dirty water?' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'cracked ewers' is the wordplay.
'cracked' indicates an anagram.
'ewers' is an anagram of 'SEWER'.

'containing' acts as a link.

Can you help me to learn more?

(Other definitions for sewer that I've seen before include "Filthy channel" , "Tailor" , "Channel to carry away waste water and matter" , "Drainage channel" , "It drains" .)

I've seen this clue in the Evening Standard.
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