Inventor one could ring? (4)
I believe the answer is:
bell
'inventor' is the definition.
(Alexander Graham Bell)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for bell that I've seen before include "Stag's cry; ringer" , "Something to jingle?" , "bicycle accessory" , "Ringing device" , "See 23" .)