Follower of Mary (4)
I believe the answer is:
lamb
'follower of mary' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lamb that I've seen before include "Young shee" , "Young farm animal" , "Sweet and innocent child" , "Charles ---, essayist; meek animal" , "Agnus Dei - . . . . of God" .)