Knock out facts and figures about a state of the USA (6)
I believe the answer is:
dakota
'a state of the usa' is the definition.
I can't tell whether this definition defines the answer.
'knock out facts and figures about' is the wordplay.
'knock out' becomes 'ko'.
'facts and figures' becomes 'data' (data is information).
'about' means one lot of letters goes inside another.
'ko' placed within 'data' is 'DAKOTA'.
Can you help me to learn more?
(Other definitions for dakota that I've seen before include "Stereophonics single / John Wayne film" , "North American Indian; Douglas DC-Three" , "US territory split North and South" , "World War II aircraft" , "-- Fanning, US actress" .)