Footballers' exchange covered by radio network (3-3)
I believe the answer is:
one-two
'footballers' exchange' is the definition.
(type of pass in football)
'covered by radio network' is the wordplay.
'covered by' says the answer is hidden in the clue.
'ONE-TWO' can be found hidden inside 'radio network'.
(Other definitions for one-two that I've seen before include "Blow using fists' digits" , "Swift couple of blows at boxing" , "Boxing or soccer manoeuvre" , "Soccer move" , "Interpassing at football - left-right at boxing" .)