Suppress outrageous Latin penned by trio, cutting end (8)
I believe the answer is:
throttle
'suppress' is the definition.
(I've seen this before)
'outrageous latin penned by trio cutting end' is the wordplay.
I cannot really see how this works, but
'outrageous' could be 'ott' (short for over the top) and 'ott' is present in the answer.
'latin' could be 'l' and 'l' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for throttle that I've seen before include "Strangle; regulator valve" , "one of the controls in a car" , "Check" , "Strangle; fuel controller" , "Choke by pressure on the windpipe" .)