Search riverbed (6)
I believe the answer is:
dredge
(Other definitions for dredge that I've seen before include "Clear out (a waterway)" , "Drag up" , "Remove earth from under water" , "(Of harbour or river) make deeper" , "Sprinkle flour" .)
I believe the answer is:
dredge
(Other definitions for dredge that I've seen before include "Clear out (a waterway)" , "Drag up" , "Remove earth from under water" , "(Of harbour or river) make deeper" , "Sprinkle flour" .)