Journalist covering men battling enemy primarily (5)
I believe the answer is:
embed
'journalist covering men battling enemy primarily' is the definition.
I can't tell whether this definition defines the answer.
'journalist covering men battling enemy primarily' is the wordplay.
'journalist' becomes 'ed' (short for editor).
'covering' is an insertion indicator.
'primarily' says to take the initial letters.
The initial letters of 'men battling enemy' is 'mbe'.
'ed' going around 'mbe' is 'EMBED'.
(Other definitions for embed that I've seen before include "Fix firmly and deeply" , "war reporter" , "Fix firmly (in ground)" , "Enclose snugly" , "Fix firmly in surrounding mass" .)