Bad actor giving up halfway through major role (3)
I believe the answer is:
ham
'bad actor' is the definition.
(a ham is someone who overacts)
'up halfway through major role' is the wordplay.
'up' becomes 'ariseinthemorning' (I've seen this in another clue).
'halfway through' says to take the centre.
'major role' becomes 'am' (I can't explain this - if you can you should give a lot more credence to this answer).
The centre of 'ariseinthemorning' is 'h'.
'h'+'am'='HAM'
'giving' acts as a link.
Can you help me to learn more?
(Other definitions for ham that I've seen before include "Meat for actor who overdoes it" , "Tasty meat for thespian who overacts" , "Meat for the radio amateur" , "under twenty-eight [HIP]" , "Noah's second son - a bad actor?" .)