Animal shelter one gets past again (4)

I believe the answer is:

byre

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'animal shelter one' is the definition.
The definition suggests a singular noun which matches the answer.

'past again' is the wordplay.
'past' becomes 'by' (as in years gone by).
'again' becomes 're' (prefix meaning 'again').
'by'+'re'='BYRE'

'gets' acts as a link.

Can you help me to learn more?

(Other definitions for byre that I've seen before include "Stockholder" , "Cowhouse" , "Durham's cover" , "Shelter for cows" , "Cow barn" .)

I've seen this clue in the Evening Standard.

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