State I mean to change (5)
I believe the answer is:
maine
'state' is the definition.
(US state)
'i mean to change' is the wordplay.
'to change' is an anagram indicator.
'i'+'mean'='imean'
'imean' with letters rearranged gives 'MAINE'.
(Other definitions for maine that I've seen before include "North-east American state" , "North-easterly US state" , "N. US Atlantic state" , "somewhere in America" , "NE US state" .)