Biblical figure, one involved with Leah and Jacob primarily (6)
I believe the answer is:
elijah
'biblical figure' is the definition.
The definition suggests a singular noun which matches the answer.
'one involved with leah and jacob primarily' is the wordplay.
'one' becomes 'i' (Roman numeral).
'involved with' is an anagram indicator (involved can mean confusing or complex).
'and' says to put letters next to each other.
'primarily' indicates taking the first letters.
The first letter of 'jacob' is 'j'.
'leah' put after 'j' is 'jleah'.
'i' anagrammed with 'jleah' can make 'ELIJAH'.
Can you help me to learn more?
(Other definitions for elijah that I've seen before include "O.T. prophet who disappeared in fiery chariot" , "Mendelssohn oratorio" , "OT, Islamic prophet" , "Hebrew prophet who rebuked Ahab and Jezebel" , "Old Testament prophet" .)