Aggressive journalist’s latest report about hypocritical leader (9)
I believe the answer is:
newshound
'aggressive journalist's' is the definition.
'newshound' can be an answer for 'journalist's' (I have seen 'American journalist' mean 'newshound' so perhaps 'journalist' could also mean 'newshound'). I'm not certain of the 'aggressive' bit.
'latest report about hypocritical leader' is the wordplay.
'latest' becomes 'new'.
'report' becomes 'sound' (I can't explain this - if you can you should give a lot more credence to this answer).
'about' means one lot of letters goes inside another.
'leader' indicates taking the first letters.
The initial letter of 'hypocritical' is 'h'.
'sound' placed around 'h' is 'shound'.
'new'+'shound'='NEWSHOUND'
Can you help me to learn more?
(Other definitions for newshound that I've seen before include "He's after a story" , "American journalist" , "assiduous seeker of stories" , "read this person's reports?" , "Paper reporter" .)