Language adopted by Zambian or Senegalese (5)
I believe the answer is:
norse
'language' is the definition.
(Norse is an example)
'adopted by zambian or senegalese' is the wordplay.
'adopted by' indicates the answer is hidden within the clue.
'NORSE' is hidden within 'zambian or senegalese'.
(Other definitions for norse that I've seen before include "Relating to Norway" , "These men were Vikings" , "Old Scandinavian tongue" , "Old European" , "Relating to ancient Scandinavia" .)