Spiritual leader, Amish, hair sprayed (9)
I believe the answer is:
maharishi
'spiritual leader' is the definition.
(I've seen this before)
'amish hair sprayed' is the wordplay.
'sprayed' indicates anagramming the letters (I've seen this in other clues).
'amish'+'hair'='amishhair'
'amishhair' with letters rearranged gives 'MAHARISHI'.
(Other definitions for maharishi that I've seen before include "Hindu spiritual leader" , "Seasoned beef-pork sausage" , "Indian sage" , "Hindu instructor" , "leading teacher" .)