Alternative to a knocker (8)
I believe the answer is:
doorbell
(Other definitions for doorbell that I've seen before include "Entry ringer" , "It announces a caller" , "which visitors use" , "Alternative to knocker" , "Press it to gain access" .)
I believe the answer is:
doorbell
(Other definitions for doorbell that I've seen before include "Entry ringer" , "It announces a caller" , "which visitors use" , "Alternative to knocker" , "Press it to gain access" .)