Make miserable journos back editor up (7)
I believe the answer is:
depress
'make miserable journos' is the definition.
I can't tell whether this definition defines the answer.
'back editor up' is the wordplay.
'back' says the letters should be written in reverse.
'editor' becomes 'ed' (abbreviation).
'up' becomes 'press' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'ed' written backwards gives 'de'.
'de'+'press'='DEPRESS'
Can you help me to learn more?
(Other definitions for depress that I've seen before include "Make sad or gloomy" , "Make downhearted" , "Bring down" , "Push down or dispirit" , "Push down or lower the spirit" .)