Part in Macbeth and someone generous (8)
I believe the answer is:
handsome
'generous' is the definition.
(similar in meaning)
'part in macbeth and someone' is the wordplay.
'part in' indicates a hidden word.
'HANDSOME' is hidden in the letters of 'macbeth and someone'.
(Other definitions for handsome that I've seen before include "Fine-looking" , "Nice-looking" , "large" , "Nomads he found to be good-looking" , "Well-proportioned" .)