Erroneously pick up note by quiet listener (7)
I believe the answer is:
mishear
'erroneously pick up' is the definition.
I can't judge whether this definition defines the answer.
'note by quiet listener' is the wordplay.
'note' becomes 'mi' (as in 'do re mi').
'by' is a charade indicator (letters next to each other).
'quiet' becomes 'sh' ('sh' is used to tell someone to be quiet).
'listener' becomes 'ear' (body part which hears or listens).
'mi'+'sh'+'ear'='MISHEAR'
Can you help me to learn more?
(Other definitions for mishear that I've seen before include "Pick up wrong" , "Get wrong message" , "Fail to pick up" , "Incorrectly pick up" , "Sense (words) wrongly" .)