Rage pressman moderated (8)
I believe the answer is:
tempered
'moderated' is the definition.
(similar in meaning)
'rage pressman' is the wordplay.
'rage' becomes 'temper' (temper means anger or rage).
'pressman' becomes 'ed' (short for editor).
'temper'+'ed'='TEMPERED'
(Other definitions for tempered that I've seen before include "Made hard through heating and cooling" , "watered down" , "Neutralised, counterbalanced" , "Moderated, softened" , "Heat-treated" .)