Animal in Mali one's seen (7)
I believe the answer is:
lioness
'animal' is the definition.
(I've seen this before)
'in mali one's seen' is the wordplay.
'in' indicates the answer is hidden within the clue.
'LIONESS' is hidden in the letters of 'mali ones seen'.
(Other definitions for lioness that I've seen before include "Female big cat" , "She may have pride" , "Beast" , "Predator" , "predatory female'" .)