Journalist covering current Muslim festival (3)
I believe the answer is:
eid
'muslim festival' is the definition.
'journalist covering current' is the wordplay.
'journalist' becomes 'ed' (short for editor).
'covering' indicates putting letters inside.
'current' becomes 'i' (symbol for electric current).
'ed' enclosing 'i' is 'EID'.
(Other definitions for eid that I've seen before include "feast" , "religious festival" .)