Bird you may buy or part exchange (6)

I believe the answer is:

parrot

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

'bird' is the definition.
(I know that parrot is a type of bird)

'or part exchange' is the wordplay.
'exchange' indicates an anagram.
'or'+'part'='orpart'
'orpart' anagrammed gives 'PARROT'.

'you may buy' is the link.
This may not be correct. Some or all of it may be part of another bit of the clue.

Can you help me to learn more?

(Other definitions for parrot that I've seen before include "Repeater" , "18's [BIRD]" , "Vividly coloured bird" , "birdie" , "Repeat unintelligently" .)

I've seen this clue in The Globe and Mail.

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