Djokovic, gutted about stupid visa, ended tennis competition (5,3)
I believe the answer is:
davis cup
'tennis competition' is the definition.
(the Davis Cup is a tennis competition)
'djokovic gutted about stupid visa ended' is the wordplay.
'gutted' says to hollow out the word (remove centre letters) (to gut something is to remove its insides).
'about' means one lot of letters goes inside another.
'stupid' indicates anagramming the letters (in a stupid order).
'ended' becomes 'up' (up can mean finished or at an end).
'djokovic' with its middle removed is 'dc'.
'visa' is an anagram of 'avis'.
'dc' enclosing 'avis' is 'davisc'.
'davisc'+'up'='DAVIS CUP'
(Other definitions for davis cup that I've seen before include "Sets competition" , "event?" , "International tennis competition" , "Annual tennis team championship award" , "International lawn tennis championship" .)