Never once arranged to meet again (9)
I believe the answer is:
reconvene
'meet again' is the definition.
('convene' is an answer for 'meet' so perhaps 'reconvene' is OK for 'meet again')
'never once arranged' is the wordplay.
'arranged' is an anagram indicator.
'never'+'once'='neveronce'
'neveronce' anagrammed gives 'RECONVENE'.
'to' is the link.
(Other definitions for reconvene that I've seen before include "get together again" , "Meet again" .)