Footballers' exchange covered by radio network (3-3)
I believe the answer is:
Here is my best explanation:
'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", "Pair of blows in boxing" and "Pair of punches with both hands in quick succession".)