Give me back the thing in question (4)
I believe the answer is:
emit
'question' is the definition.
The answer and definition can be both to do with communicating as well as being verbs in their base form.
Perhaps they are linked in a way I don't understand?
'give me back the thing' is the wordplay.
'give' is a charade indicator (letters next to each other).
'back' says the letters should be written in reverse.
'the thing' becomes 'it'.
'me' backwards is 'em'.
'em'+'it' is 'EMIT'.
'in' is the link.
Can you help me to learn more?
(Other definitions for emit that I've seen before include "Let out" , "Broadcast" , "'Give off, odour say (4)'" , "Produce and discharge" , "Conductor; telegram (US)" .)