Beginner recognised buzzer on the telephone (6)
I believe the answer is:
newbie
'beginner' is the definition.
(I've seen this in another clue)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for newbie that I've seen before include "Inexperienced arrival" , "Greenhorn" , "Novice" , "Fresh Internet participant" , "Starter - win bee (anag)" .)