Urge to be part of the media (5)
I believe the answer is:
press
I believe this is a triple definition!
'urge' is the first definition.
(I know that urge can be written as press)
'to be' is the second definition.
(pressing is a kind of being)
'part of the media' is the third definition.
(I've seen this in another clue)
(Other definitions for press that I've seen before include "Fourth estate" , "that may gather when news is expected" , "Squeeze together" , "Cupboard and printing machine" , "Apply steady force to (something)" .)