A meaty role would probably suit him (3)
I believe the answer is:
ham
'him' is the definition.
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for ham that I've seen before include "Smoked pig-meat" , "Meat; radio operator" , "One of Noah's sons" , "Succulent meat or extravagant actor" , "under twenty-eight [HIP]" .)