Old plane satisfactory in a little soaring (6)

I believe the answer is:

dakota

I'm a little stuck... Click here to teach me more about this clue!

'old plane' is the definition.
'dakota' can be an answer for 'plane' (I've seen this before). I'm not certain of the 'old' bit.

'satisfactory in a little soaring' is the wordplay.
'satisfactory' becomes 'o.k.' (similar in meaning).
'in' means one lot of letters goes inside another.
'little' becomes 'tad'.
'soaring' says the letters should be written in reverse (in a down clue, letters 'soar' up).
'a'+'tad'='atad'
'ok' going into 'atad' is 'atokad'.
'atokad' reversed gives 'DAKOTA'.

Can you help me to learn more?

(Other definitions for dakota that I've seen before include "Douglas C-47; Siouan language" , "Stereophonics single / John Wayne film" , "Douglas DC 3 name; N. American native" , "North American Indian; Douglas DC-3" , "World War II aircraft" .)

I've seen this clue in The Telegraph.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.