Don't allow publication of government report (4)
I believe the answer is:
bang
'report' is the definition.
(thesaurus)
'don't allow publication of government' is the wordplay.
I cannot quite see how this works, but
'government' could be 'g' and 'g' is found in the answer.
The remaining letters 'ban' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for bang that I've seen before include "Sudden impact" , "Sound of explosion" , "Strike violently" , "Explosive noise" , "Hairstyle" .)