Notable? Not in status (11)
I believe the answer is:
outstanding
'notable?' is the definition.
(thesaurus)
'not in status' is the wordplay.
'not in' becomes 'out' ('out' is the opposite to 'in').
'status' becomes 'standing' (standing is a kind of status).
'out'+'standing'='OUTSTANDING'
(Other definitions for outstanding that I've seen before include "Great" , "Exceptionally good" , "to be settled" , "Owing" , "Superb" .)