Vendor's state-of-the-art herb garden perfect at the end (9)
I believe the answer is:
newsagent
'vendor's' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'state-of-the-art herb garden perfect at the end' is the wordplay.
'state-of-the-art' becomes 'new' (I've seen this in another clue).
'herb' becomes 'sage' (sage is a kind of herb).
'at the end' says to take the final letters.
The last letters of 'garden perfect' are 'nt'.
'new'+'sage'+'nt'='NEWSAGENT'
Can you help me to learn more?
(Other definitions for newsagent that I've seen before include "paper supplier" , "Retailer" , "shop selling rags?" , "place selling organs?" , "Guardian seller?" .)