Journalist has soldiers to correct (5)
I believe the answer is:
emend
'to correct' is the definition.
(I've seen this before)
'journalist has soldiers' is the wordplay.
'journalist' becomes 'ed' (short for editor).
'has' means one lot of letters goes inside another.
'soldiers' becomes 'men' (men can mean a group of soldiers).
'ed' placed around 'men' is 'EMEND'.
(Other definitions for emend that I've seen before include "Edit; make alterations to a draft" , "get rid of faults" , "Improve by altering" , "Correct, revise (text)" , "Improve (writing)" .)