At home with small Greek character, sensible and motivating (13)
I believe the answer is:
inspirational
'motivating' is the definition.
Both the answer and definition are adjectives. Maybe there's an association between them I don't understand?
'at home with small greek character sensible' is the wordplay.
'at home' becomes 'in' ('I'm in' can mean 'I'm at home').
'with' says to put letters next to each other.
'small' becomes 's' (abbreviation - e.g. clothes size).
'greek character' becomes 'pi' (letter from the Greek alphabet).
'sensible' becomes 'rational' (associated in meaning).
'in'+'s'+'pi'+'rational'='INSPIRATIONAL'
'and' acts as a link.
Can you help me to learn more?
(Other definitions for inspirational that I've seen before include "(Of idea) touched with genius" , "Generating an elevated feeling" , "moving" , "stirring" , "Having an exalting or encouraging influence" .)