Fake misattributed in the auction, not old (11)
I believe the answer is:
inauthentic
'fake' is the definition.
Both the answer and definition are adjectives. Perhaps they are linked in a way I don't understand?
'misattributed in the auction not old' is the wordplay.
I cannot really see how this works, but
'in' is present in the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found in the answer.
'not' could be 'nt' (synonyms) and 'nt' is located in the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for inauthentic that I've seen before include "Not genuine" , "Artificial" .)