Upright hairstyle (7)
(Other definitions for mohican that I've seen before include "elevated style" , "type of cut" , "Hairstyle with a tall, spiky wall of hair, shaved either side" , "Punk style" , "American Indian and a haircut" .)
(Other definitions for mohawk that I've seen before include "American runner" , "Member of a native American people and a haircut" , "Skating step; American Indian" , "Skating manoeuvre - member of Amerindian tribe" , "Native American tribe" .)