Believe journalist struck through review (6)
I believe the answer is:
credit
'believe' is the definition.
(thesaurus)
'journalist struck through review' is the wordplay.
'journalist' becomes 'ed' (short for editor).
'struck through' means one lot of letters goes inside another.
'review' becomes 'crit' (I've seen this before).
'ed' inserted inside 'crit' is 'CREDIT'.
(Other definitions for credit that I've seen before include "Time allowed to pay" , "Believe - one side of an account" , "Praise; tick" , "Reputation (for solvency)" , "Believe the time to pay?" .)