Reporter's crude language causes concern (6)
I believe the answer is:
pigeon
'concern' is the definition.
(as in the phrase 'not my pigeon')
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for pigeon that I've seen before include "Dupe" , "Racing bird of town and wood" , "Bird of the dove family" , "gull" , "run, perhaps" .)