Ring animal back, alright? (4)
I believe the answer is:
okay
'alright?' is the definition.
('okay' can be a synonym of 'alright')
'ring animal back' is the wordplay.
'ring' becomes 'o'.
'animal' becomes 'yak' (I have seen 'Tibetan animal ' mean 'yak' so perhaps 'animal' could also mean 'yak').
'back' shows that the letters should be reversed in order.
'yak' written backwards gives 'kay'.
'o'+'kay'='OKAY'
(Other definitions for okay that I've seen before include "Approve, endorse" , "Fairly good; approve" , "Alright" , "Not terrific but acceptable" , "All right; sanction" .)