Not amateurs (abbr) (4)
I believe the answer is:
pros
(Other definitions for pros that I've seen before include "Positive arguments" , "Yes votes" , "Sportsmen who are paid" , "Arguments in favour" , "Persons with knowledge and skill" .)
I believe the answer is:
pros
(Other definitions for pros that I've seen before include "Positive arguments" , "Yes votes" , "Sportsmen who are paid" , "Arguments in favour" , "Persons with knowledge and skill" .)