Iroquois foe in the Beaver Wars (4)
I believe the answer is:
erie
'iroquois foe in the beaver wars' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for erie that I've seen before include "North american lake sounds spooky" , "One of the Great Lakes" , "The lake sounds weird" , "Spooky-sounding" , "A Great American lake - sounds spooky" .)