For round of competition, journalist warmed up (6)
I believe the answer is:
heated
'warmed up' is the definition.
(I've seen this before)
'for round of competition journalist' is the wordplay.
I cannot quite understand how this works, but
'round' could be 'heat' (stage of a competition) and 'heat' is present in the answer.
'journalist' could be 'ed' (short for editor) and 'ed' is present in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for heated that I've seen before include "Of discussion, angry and hostile" , "Angry or warmed" , "Angry, impassioned" , "Raised the temperature" , "Inflamed with passion" .)