Fratricide from Zulus without leaders (7)
I believe the answer is:
romulus
'fratricide' is the definition.
(I've seen this before)
'from zulus without leaders' is the wordplay.
'from' becomes 'rom' (I am not sure about this - if you are sure you should believe this answer much more).
'without leaders' means to remove the first letter (I've seen 'without leader' mean this).
'zulus' with its initial letter removed is 'ulus'.
'rom'+'ulus'='ROMULUS'
Can you help me to learn more?
(Other definitions for romulus that I've seen before include "A founder twin of Rome" , "Founder of Rome from our slum" , "Brother to five down" , "One of the twin founders of Rome" , "Twin brother of Remus" .)