Another country and this one are in trouble (7)

I believe the answer is:

ukraine

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'another country and this one are in trouble' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

'country and this one are in trouble' is the wordplay.
'country' becomes 'UK' (United Kingdom).
'and' becomes 'n' (common abbreviation for 'and').
'this one' becomes 'i' (Roman numeral).
'in trouble' indicates an anagram.
'n'+'i'+'are'='niare'
'niare' with letters rearranged gives 'raine'.
'uk'+'raine'='UKRAINE'

Can you help me to learn more?

(Other definitions for ukraine that I've seen before include "Kiev's nation" , "Former USSR republic, capital Kiev" , "Country to the north of the Black Sea" , "Ex-USSR country" , "Run Ikea down in the Eastern state" .)

I've seen this clue in The Guardian.

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