Stupid person gets told off (4)
I believe the answer is:
dolt
'stupid person' is the definition.
(I know that dolt are anserine)
'told off' is the wordplay.
'off' indicates an anagram.
'told' is an anagram of 'DOLT'.
'gets' is the link.
(Other definitions for dolt that I've seen before include "Dunce" , "Slow-witted person" , "Fool" , "dope" , "Dull or stupid fellow" .)