A state of the USA? OK, do that USA anagram! (5,6)
I believe the answer is:
south dakota
'a state of the usa? ok do that usa anagram' is the definition.
'South Dakota' can be an answer for 'a state' (South Dakota is an example). I am unsure of the rest of the definition.
'ok do that usa anagram' is the wordplay.
'anagram' indicates an anagram.
'ok'+'do'+'that'+'usa'='okdothatusa'
'okdothatusa' with letters rearranged gives 'SOUTH DAKOTA'.
Can you help me to learn more?
(Other definitions for south dakota that I've seen before include "part of the Louisiana purchase" , "northern state" , "US state, capital Pierre" .)