Idea of living without money primarily (9)
I believe the answer is:
sentiment
'idea' is the definition.
(thesaurus)
'living without money primarily' is the wordplay.
'living' becomes 'sentient' (I am not sure about this - if you are sure you should believe this answer much more).
'without' indicates putting letters inside ('without' can be similar in meaning to 'outside').
'primarily' says to take the initial letters.
The first letter of 'money' is 'm'.
'sentient' enclosing 'm' is 'SENTIMENT'.
'of' is the link.
Can you help me to learn more?
(Other definitions for sentiment that I've seen before include "View, opinion, feeling" , "Emotional thought" , "Test men in, say, emotion" , "Mawkishness" , "judgement" .)