Meet right partner (5)
I believe the answer is:
rally
'meet' is the definition.
(thesaurus)
'right partner' is the wordplay.
'right' becomes 'r' (common abbreviation).
'partner' becomes 'ally' (an ally is an associate or supporter).
'r'+'ally'='RALLY'
(Other definitions for rally that I've seen before include "Recover; car race" , "Regain health" , "Recover; mass meeting" , "Motor sport event" , "Assemble - recover" .)