Independent or uninhibited person (4,6)
I believe the answer is:
free spirit
I believe this is a double definition.
'independent' is the first definition.
(thesaurus)
'uninhibited person' is the second definition.
(I've seen this before)
(Other definitions for free spirit that I've seen before include "Uninhibited person" , "Champion of independence" , "Irresponsible type" , "supplying endless drinks on the house" , "Individualist" .)