Anger to burden the country (7)

I believe the answer is:

ireland

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'the country' is the definition.
(Ireland is a country)

'anger to burden' is the wordplay.
'anger' becomes 'ire' (ire is intense rage).
'to burden' becomes 'land' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'ire'+'land'='IRELAND'

Can you help me to learn more?

(Other definitions for ireland that I've seen before include "British composer" , "Erin" , "European country" , "The Emerald Isle" , "State" .)

I've seen this clue in The Times and The Sun.

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