Marketplace stocking new fur (6)
I believe the answer is:
angora
'fur' is the definition.
The answer and definition can be both animals as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'marketplace stocking new' is the wordplay.
'marketplace' becomes 'agora' (agora is a kind of marketplace).
'stocking' indicates putting letters inside ('stock' can mean 'carry' or 'contain').
'new' becomes 'n' (abbreviation as in New Testament NT).
'agora' enclosing 'n' is 'ANGORA'.
Can you help me to learn more?
(Other definitions for angora that I've seen before include "Soft yarn from goat" , "Goat producing mohair" , "Wool from long-haired goats" , "Yarn or fabric made from goat hair" , "Fine yarn from hair of goats" .)