From the lake we refilled this (4)
I believe the answer is:
ewer
'this' is the definition.
The definition suggests a singular noun which matches the answer.
'from the lake we refilled' is the wordplay.
'from' says the answer is hidden in the clue.
'EWER' is hidden in the letters of 'the lake we refilled'.
Can you help me to learn more?
(Other definitions for ewer that I've seen before include "Decorative pitcher" , "Large water-jug" , "Were (anag)" , "Oversized jug" , "29 [VESSEL]" .)