Channel for excess water (6)
I believe the answer is:
sluice
(Other definitions for sluice that I've seen before include "Flush" , "Drench copiously" , "really wet" , "Water-control gate" , "Wash or rinse with a stream of water" .)
I believe the answer is:
sluice
(Other definitions for sluice that I've seen before include "Flush" , "Drench copiously" , "really wet" , "Water-control gate" , "Wash or rinse with a stream of water" .)