Launch event primarily during Muslim festival in North African city (2,5)

'north african city' is the definition.
I know nothing about this answer so I can't judge whether this works.

'launch event primarily during muslim festival in' is the wordplay.
'launch' becomes 'lob' (I can't justify this - if you can you should believe this answer much more).
'primarily' suggests taking the first letters.
'during' indicates putting letters inside.
'muslim festival' becomes 'eid' (Islamic term for festival, eg Eid al-Fitr).
'in' is an insertion indicator.
The first letter of 'event' is 'e'.
'e' placed within 'eid' is 'eeid'.
'lob' inserted within 'eeid' is 'EL OBEID'.

Can you help me to learn more?