Lamb judge consumed ultimately with Hebrew prophet (6)
I believe the answer is:
elijah
'hebrew prophet' is the definition.
(I've seen this before)
'lamb judge consumed ultimately with' is the wordplay.
'lamb' becomes 'elia' (pseudonym of essayist Charles Lamb).
'judge' becomes 'j' (abbreviation for judge).
'consumed' is an insertion indicator.
'ultimately' says to take the final letters.
The last letter of 'with' is 'h'.
'elia' enclosing 'j' is 'elija'.
'elija'+'h'='ELIJAH'
(Other definitions for elijah that I've seen before include "Hebrew prophet who disappeared in fiery chariot" , "Hebrew prophet in the time of Jezebel" , "Hebrew prophet who rebuked Ahab and Jezebel" , "Old Testament prophet" , "OT, Islamic prophet" .)