Spray with a jet of water (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
squirt
(Other definitions for squirt that I've seen before include "Jet of liquid or unimportant person in slang" , "Shoot liquid in a narrow jet" , "Force liquid out - short or contemptible person" , "Sudden spurt of liquid" , "Jet of water - little fellow" .)