One calls to order audio equipment (7)
I believe the answer is:
speaker
(Other definitions for speaker that I've seen before include "Contributor to debate" , "He asks for order" , "One in pulpit, say" , "Lecturer" , "One calls to order" .)
I believe the answer is:
speaker
(Other definitions for speaker that I've seen before include "Contributor to debate" , "He asks for order" , "One in pulpit, say" , "Lecturer" , "One calls to order" .)