The actor could make a great din
I believe the answer is:
tragedian
'the actor' is the definition.
(tragedian is a kind of actor)
'make a great din' is the wordplay.
'make' is an anagram indicator.
'a'+'great'+'din'='agreatdin'
'agreatdin' anagrammed gives 'TRAGEDIAN'.
'could' is the link.
(Other definitions for tragedian that I've seen before include "Dramatist" , "Serious actor" , "actor in Macbeth?" , "Egad, I rant about dramatic actor" , "A great din (anag) - actor" .)