Snoop around new senator's bunk (8)
I believe the answer is:
nonsense
'bunk' is the definition.
(I know that bunk can be written as nonsense)
'snoop around new senator's' is the wordplay.
'snoop' becomes 'nose' (I've seen this in another clue).
'around' is an insertion indicator.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'senator' becomes 'sen'.
'n'+'sen'='nsen'
'nose' placed around 'nsen' is 'NONSENSE'.
(Other definitions for nonsense that I've seen before include "Foolish behaviour" , "Bull" , "Claptrap, hogwash" , "rhubarb" , "Words or ideas that don't make sense" .)