Hat for a journalist to wear (6)
I believe the answer is:
fedora
'hat' is the definition.
(I know that fedora is a type of hat)
'for a journalist to wear' is the wordplay.
'journalist' becomes 'ed' (short for editor).
'to wear' is an insertion indicator (to wear something is to be covered up by it).
'for'+'a'='fora'
'fora' enclosing 'ed' is 'FEDORA'.
(Other definitions for fedora that I've seen before include "Or fade away with man's soft felt hat" , "Felt hat with a creased crown" , "Hat for RAF doe" , "Soft hat with band" , "Felt hat dented sideways" .)