Exchange views on son supporting athletics event (7)
I believe the answer is:
discuss
'exchange views' is the definition.
(thesaurus)
'son supporting athletics event' is the wordplay.
'son' becomes 's'.
'supporting' says to put letters next to each other (in a down clue, some letters go below others).
'athletics event' becomes 'discus' (I've seen this before).
's' after 'discus' is 'DISCUSS'.
'on' is the link.
(Other definitions for discuss that I've seen before include "Debate" , "Go into" , "Settle" , "Consider" , "Talk about (something)" .)