Courtroom drama shout (4)
I believe the answer is:
liar
'courtroom drama shout' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for liar that I've seen before include "Phoney" , "Dissembler" , "Person regularly 'economical with the truth'" , "one telling a story" , "Not a truth-sayer!" .)