It's east of Nevada (4)
I believe the answer is:
utah
'it's east of nevada' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for utah that I've seen before include "US state N. of Arizona" , "The "Beehive" State, capital Salt Lake City" , "The American Mormon state" , "State of the union" , "Mormon US state" .)