Dusty town in an unspecified location (11)
I believe the answer is:
springfield
I believe this is a double definition.
'dusty' is the first definition.
(I've seen this before)
'town in an unspecified location' is the second definition.
(town from The Simpsons)
(Other definitions for springfield that I've seen before include "The Simpsons' town" , "US state capital - Dusty" , "town of Flanders?" .)