Do some listening in? (9)
I believe the answer is:
eavesdrop
'do some listening in?' is the definition.
The answer and definition are not the same part of speech.
'do some listening in?' is the wordplay.
'do' becomes 'eave' (I can't justify this - if you can you should believe this answer much more).
'some' indicates the central letters.
'listening in?' becomes 'eavesdropping' ('eavesdrop' can be a synonym of 'listen in').
The middle of 'eavesdropping' is 'sdrop'.
'eave'+'sdrop'='EAVESDROP'
Can you help me to learn more?
(Other definitions for eavesdrop that I've seen before include "listen privately" , "Listen without the speaker's knowledge" , "Listen secretly to a private conversation" , "Overhear" , "Listen secretly to private talk" .)