Odd shuffling very large old animals (5)
I believe the answer is:
dodos
'old animals' is the definition.
The definition and answer can be both animals as well as being plural nouns.
Perhaps there's an association between them I don't understand?
'odd shuffling very large' is the wordplay.
'shuffling' indicates an anagram.
'very large' becomes 'os' (abbreviation for oversize).
'odd' with letters rearranged gives 'dod'.
'dod'+'os'='DODOS'
Can you help me to learn more?
(Other definitions for dodos that I've seen before include "they're no more" , "They never got up" , "Extinct flightless birds" , "Extinct birds of Mauritius" .)