Large (watery?) amount (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
ocean
(Other definitions for ocean that I've seen before include "eg Arctic" , "tons of water" , "Extensive sea area" , "Vast quantity of liquid" , "Large stretch of water" .)
I believe the answer is:
ocean
(Other definitions for ocean that I've seen before include "eg Arctic" , "tons of water" , "Extensive sea area" , "Vast quantity of liquid" , "Large stretch of water" .)