Medley in grass serve Rafael inspired originally (9)
I believe the answer is:
potpourri
'medley' is the definition.
('potpourri' can be a synonym of 'medley')
'grass serve rafael inspired originally' is the wordplay.
'grass' becomes 'pot' (cannabis).
'serve' becomes 'pour'.
'originally' suggests taking the first letters.
The first letters of 'rafael inspired' is 'ri'.
'pot'+'pour'+'ri'='POTPOURRI'
'in' is the link.
(Other definitions for potpourri that I've seen before include "Perfumed mixture; medley" , "miscellaneous stuff" , "Mixture (of flower petals and spices?)" , "hodgepodge" , "Perfuming mixture" .)