Sandbank; pub (3)
I believe the answer is:
bar
This clue is a double definition.
'sandbank' is the first definition.
(I know that sandbank can be written as bar)
'pub' is the second definition.
(both are drinking establishments)
(Other definitions for bar that I've seen before include "Saloon" , "Watering hole" , "Length of wood or metal - drinking place" , "A pub counter, or barristers' profession" , "Iron rod or drinks counter" .)