It's a catastrophe, as antipasti should have included game (8)
I believe the answer is:
pheasant
'game' is the definition.
(I know that pheasant is a type of phasianid)
'it's a catastrophe as antipasti should have included' is the wordplay.
'PHEASANT' is hidden in amongst the letters.
But, I am not sure how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for pheasant that I've seen before include "something to pluck?" , "Large game bird" , "Cock" , "Game-bird" , "Ant heaps (anag.)" .)