Brillo rival (3)
I believe the answer is:
sos
(Other definitions for sos that I've seen before include "Morse Code for help" , "Help initially, Mr Morse" , "Call for help" , "Distress call" , "Mayday call" .)
I believe the answer is:
sos
(Other definitions for sos that I've seen before include "Morse Code for help" , "Help initially, Mr Morse" , "Call for help" , "Distress call" , "Mayday call" .)