Covered with water (5)
I believe the answer is:
awash
'covered with water' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for awash that I've seen before include "Letting the 21 in" , "Letting in the sea" , "Level with the water surface" , "Flood" , "Flooded; about to sink" .)