Left game of chance after the start that uses arcane terminology (5)
I believe the answer is:
lingo
'terminology' is the definition.
(thesaurus)
'left game of chance after the start' is the wordplay.
'left' becomes 'l' (common abbreviation).
'game of chance' becomes 'bingo' (I've seen this in another clue).
'after the start' means to remove the first letter.
'bingo' with its first letter removed is 'ingo'.
'l'+'ingo'='LINGO'
'that uses arcane' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for lingo that I've seen before include "special words" , "Log in (anag.)" , "Unfamiliar language or jargon" , "Argot" , "speech" .)