Worry for speakeasy patrons (4)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
raid
(Other definitions for raid that I've seen before include "Foray, sudden attack" , "Sudden swift attack" , "Inroad" , "military operation" , "Finch and Bronson starred in . . . . On Entebbe" .)