Hallelujah kin (7)
I believe the answer is:
hosanna
'hallelujah kin' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for hosanna that I've seen before include "Cry of religious adoration, often in the highest" , "A cry of adoration to God" , "shout in adoration" , "Shout of acclamation" , "Cry of praise or joy" .)