Go down
'go down' is the definition.
(I know that go down can be written as descend)
This is all the clue.
(Other definitions for descend that I've seen before include "Move downwards" , "Come down" , "Go down" , "Plunge" , "Move downward" .)
'go down' is the definition.
(I know that drop is a more specific form of go down)
This is the entire clue.
(Other definitions for drop that I've seen before include "Plummet" , "See 1" , "Small quantity of liquid" , "Fall in small globule" , "Pendant earring" .)
'go down' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ebb that I've seen before include "Not to wax" , "Receding movement, as of a tide" , "Go out or recede like tide" , "(Sea) recede" , "Initially Mrs Browning's" .)