Possibly a small group of animals (6)

I believe the answer is:

llamas

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

'group of animals' is the definition.
'llamas' can be an answer for 'animals' (I've seen this before). I'm not sure about the 'group of' bit.

'possibly a small' is the wordplay.
'possibly' indicates anagramming the letters.
'a'+'small'='asmall'
'asmall' is an anagram of 'LLAMAS'.

Can you help me to learn more?

(Other definitions for llamas that I've seen before include "Camel-like animals" , "Sal and Mal for the animals" , "South American pack animals" , "South American cud-chewing animals" , "domesticated guanacos" .)

I've seen this clue in the Evening Standard.

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