LaBeouf of "Transformers” (4)
I believe the answer is:
shia
'labeouf of transformers' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for shia that I've seen before include "A main branch of Islam" , "A major denomination of Islam" , "A_main branch of Islam" , "One of the two main branches of orthodox Islam" .)