Row about high-pitched electronic beeping on phone (4,4)
I believe the answer is:
dial tone
'beeping on phone' is the definition.
I can't tell whether this defines the answer.
'row about high-pitched electronic' is the wordplay.
'row' becomes 'din' (both can mean a loud disturbance).
'about' means one lot of letters goes inside another.
'high-pitched' becomes 'alto' (similar in meaning).
'electronic' becomes 'e' (as in e-mail or e-books).
'din' going around 'alto' is 'dialton'.
'dialton'+'e'='DIAL TONE'
Can you help me to learn more?
(Other definitions for dial tone that I've seen before include "noise on the line from America" , "Sound on phone line" , "Sound heard on phone (US)" .)