Meat in a Cuban sandwich (3)
I believe the answer is:
ham
'meat in a cuban sandwich' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ham that I've seen before include "Meat for actor who overdoes it" , "One of Noah's sons" , "Poor person acting" , "(Cooked or cured) thigh of pig" , "Coarse" .)