Court welcoming return of live discussion (6)
I believe the answer is:
debate
'discussion' is the definition.
(I know that debate is a type of discussion)
'court welcoming return of live' is the wordplay.
'court' becomes 'date' (romantically pursue).
'welcoming' indicates putting letters inside (in sense of 'inviting in').
'return of' says the letters should be written in reverse.
'live' becomes 'be' (synonyms).
'be' in reverse letter order is 'eb'.
'date' placed around 'eb' is 'DEBATE'.
(Other definitions for debate that I've seen before include "Formal public discussion" , "Exchange of views" , "Discuss with opposing arguments" , "Discuss (in parliament)" , "Talk" .)