Predatory (9)
(Another definition for raptorial that I've seen is " Predatory".)
'predatory' is the definition.
(I know that predatory can be written as rapacious)
This is the entire clue.
(Other definitions for rapacious that I've seen before include "Aggressively predatory" , "Marauding, avaricious" , "Extortionate" , "Greedy and grasping" , "wanting more" .)