Arrive almost full of emotion, and sort of leave (13)
I believe the answer is:
compassionate
'sort of leave' is the definition.
'arrive almost full of emotion' is the wordplay.
'arrive almost' becomes 'comate' (I can't justify this - if you can you should give a lot more credence to this answer).
'full of' is an insertion indicator.
'emotion' becomes 'passion' (I have seen 'Ardent emotion' mean 'passion' so perhaps 'emotion' could also mean 'passion').
'comate' going around 'passion' is 'COMPASSIONATE'.
'and' is the link.
Can you help me to learn more?
(Other definitions for compassionate that I've seen before include "Sympathetic and merciful" , "concerned for others" , "Kind-hearted" , "Tender-hearted" , "Humanitarian" .)