It's bright to climb on branch (5)

I believe the answer is:

shiny

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'it's bright' is the definition.
(synonyms)

'climb on branch' is the wordplay.
'climb' becomes 'shin' (to shin can mean to climb up something).
'on branch' becomes 'y' (I am not sure about this - if you are sure you should believe this answer much more).
'shin'+'y'='SHINY'

'to' acts as a link.

Can you help me to learn more?

(Other definitions for shiny that I've seen before include "Polished and reflecting light" , "Smooth and reflective" , "Bright" , "Polished, reflective" , "Smooth and polished" .)

I've seen this clue in the Sydney Morning Herald.

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