Uninhibited person, generous soul (4,6)
I believe the answer is:
free spirit
'uninhibited person' is the definition.
(I've seen this before)
'generous soul' is the wordplay.
'generous' becomes 'free' (I've seen this before).
'soul' becomes 'spirit'.
'free'+'spirit'='FREE SPIRIT'
(Other definitions for free spirit that I've seen before include "What Prospero promises to do" , "supplying endless drinks on the house" , "Someone with an independent turn of mind" , "Nonconformist" , "one not afraid to flout convention" .)