Passionate hate displayed by journalist (6)
I believe the answer is:
heated
'passionate' is the definition.
(similar in meaning)
'hate displayed by journalist' is the wordplay.
'displayed' indicates anagramming the letters (letters displayed in another way).
'by' says to put letters next to each other.
'journalist' becomes 'ed' (short for editor).
'hate' is an anagram of 'heat'.
'heat'+'ed'='HEATED'
(Other definitions for heated that I've seen before include "Angry or warmed" , "Vehement" , "This type of argument is passionate" , "Raised the temperature" , "Angry - passionate" .)