Be acquitted and obtain release (3,3)
I believe the answer is:
get off
'release' is the definition.
The answer and definition can be both to do with communicating as well as being verbs in their base form.
Perhaps you can see a link between them that I don't see?
'be acquitted and obtain' is the wordplay.
'be acquitted' becomes 'off' (I am not sure about this - if you are sure you should believe this answer much more).
'and' means one lot of letters go next to another.
'obtain' becomes 'get' (synonyms).
'off' put after 'get' is 'GET OFF'.
Can you help me to learn more?
(Other definitions for get off that I've seen before include "Be acquitted - go to sleep" , "light doze?" , "Not be punished" , "Disembark" , "shed" .)