Easy to pour warm salt water over English meadow (9)
I believe the answer is:
runnymede
'meadow' is the definition.
(I've seen this before)
'easy to pour warm salt water over english' is the wordplay.
I cannot really see how this works, but
'water' could be 'run' (run is a kind of water) and 'run' is found within the answer.
'english' could be 'e' (abbreviation) and 'e' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for runnymede that I've seen before include "riverside location" , "Place in Surrey" , "Here the English got charter" , "Where King John signed Magna Carta in 1215" , "Magna Carta meadow" .)