Choice beginning to rattle a small country? (7)

I believe the answer is:

andorra

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'small country?' is the definition.
(Andorra is a small European country)

'choice beginning to rattle a' is the wordplay.
'choice' becomes 'andor' (I can't justify this - if you can you should give a lot more credence to this answer).
'beginning to' indicates taking the first letters.
The initial letter of 'rattle' is 'r'.
'andor'+'r'+'a'='ANDORRA'

Can you help me to learn more?

(Other definitions for andorra that I've seen before include "Semi-independent country in Pyrenees" , "part of Europe" , "Territory" , "Independent Pyrenean state" , "microstate" .)

I've seen this clue in The Times.

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