Taking part, journalist endeavours to pay attention (6)
I believe the answer is:
listen
'pay attention' is the definition.
(I've seen this before)
'taking part journalist endeavours to' is the wordplay.
'taking part' says the answer is hidden in the clue.
'LISTEN' can be found hidden inside 'journalist endeavours to'.
(Other definitions for listen that I've seen before include "Be silent in order to hear" , "Hark!" , "Pay heed (to advice)" , "Take heed -- 13 (anag)" , "16 (anag.)" .)