Register egg being eaten by tragic figure, along with large bap (9,4)
I believe the answer is:
electoral roll
'register' is the definition.
(list of registered voters)
'egg being eaten by tragic figure along with large bap' is the wordplay.
'egg' becomes 'o' (an 'o' resembles an egg).
'being eaten by' is an insertion indicator (inserted letters get eaten).
'tragic figure' becomes 'electra' (figure in Greek tragedies).
'along with large bap' becomes 'lroll' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'o' inserted within 'electra' is 'electora'.
'electora'+'lroll'='ELECTORAL ROLL'
Can you help me to learn more?
(Other definitions for electoral roll that I've seen before include "List of people" , "List of those eligible to vote" , "List of eligible voters" , "Voting list" .)