Beast of many a kind (3)
I believe the answer is:
yak
'beast' is the definition.
(I have seen 'Beast of burden ' mean 'yak' so perhaps 'beast' could also mean 'yak')
'of many a kind' is the wordplay.
'of' indicates a hidden word.
'YAK' is hidden within 'many a kind'.
(Other definitions for yak that I've seen before include "Long-haired ox of central Asia" , "Tibetan ox - chatter" , "Wild ox" , "Tibetan beast; chatter" , "Shaggy-haired ox" .)