Iroquois tribe
I believe the answer is:
seneca
'iroquois tribe' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for seneca that I've seen before include "Roman statesman, philosopher and playwright" , "philosopher in Rome" , "Roman stoic; US Indian" , "Stoic, Nero's tutor" , "Dramatist" .)