Place is unusually unusual (7)
I believe the answer is:
special
'unusual' is the definition.
(thesaurus)
'place is unusually' is the wordplay.
'unusually' indicates an anagram.
'place'+'is'='placeis'
'placeis' anagrammed gives 'SPECIAL'.
(Other definitions for special that I've seen before include "Individual" , "Exceptional or particular" , "Out of the ordinary, singular" , "Distinguished" , "Quite out of the ordinary" .)