The largest state of the USA (6)
I believe the answer is:
alaska
'the largest state of the usa' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for alaska that I've seen before include "Most northerly state of USA" , "Anchorage location" , "Northmost US state" , "49th US state" , "that may be baked? Not by the sun" .)