Shop Reg set up for animals (7)

I believe the answer is:

gophers

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'up for animals' is the definition.
The answer and definition can be both animals as well as being plural nouns.
Perhaps there's a link between them I don't understand?

'shop reg set' is the wordplay.
'set' indicates anagramming the letters (instruction to set the letters).
'shop'+'reg'='shopreg'
'shopreg' is an anagram of 'GOPHERS'.

Can you help me to learn more?

(Other definitions for gophers that I've seen before include "Creatures" , "waffles" , "Computer browsers" .)

I've seen this clue in The Irish Independent.

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