Retiring - or extrovert (8)
I believe the answer is:
outgoing
I believe this is a double definition.
'retiring' is the first definition.
('outgoing' can be similar in meaning to 'retiring')
'extrovert' is the second definition.
(thesaurus)
'or' acts as a link.
(Other definitions for outgoing that I've seen before include "Expenditure" , "Friendly, confident" , "Extrovert" , "Friendly - retiring" , "Leaving office" .)