Agitating a liquid (8)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
stirring
'agitating a liquid' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for stirring that I've seen before include "Moving" , "Agitating a liquid" , "Rousing; mixing" , "Agitating or rousing" , "Exciting" .)