Time to change Mali language (5)
I believe the answer is:
tamil
'language' is the definition.
(Tamil is an example)
'time to change mali' is the wordplay.
'time' becomes 't'.
'to change' indicates anagramming the letters.
'mali' anagrammed gives 'amil'.
't'+'amil'='TAMIL'
(Other definitions for tamil that I've seen before include "Member of South Indian people" , "Perhaps Indian" , "S. India/Sri Lankan person, tongue" , "Language of southern India and Sri Lanka" , "An official language of Sri Lanka" .)