The worst actor in Hamlet (3)
I believe the answer is:
ham
This clue might be a double definition.
'the worst actor' is the first definition.
'ham' can be an answer for 'actor' (ham is a kind of actor). I am not sure about the 'the worst' bit.
'hamlet' is the second definition.
(thesaurus)
'in' is the link.
Can you help me to learn more?
(Other definitions for ham that I've seen before include "Meat served in sandwiches" , "Tasty meat for thespian who overacts" , "Meat for the radio amateur" , "Overacting actor" , "Food" .)