Walk in shallow water (6)
I believe the answer is:
paddle
'walk in shallow water' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for paddle that I've seen before include "To move canoe, you have to" , "Walk by the shore" , "Walk with bare feet in shallow water" , "dabble in the water" , "Rowing implement for canoe" .)