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Hi MikeCh,
A perfectly reasonable question…
FOI - First One In
LOI - Last One In
COD - Clue Of (the) Day

There are more such acronyms, I have list somewhere which helped me…

FOI - First One In
LOI - Last One In
COD - Clue Of the Day
DD - Double Definition
CD - Cryptic definition
PDM - Penny Drop Moment
DBE - Definition By Example
Anagrind - Anagram Indicator
Anagrist - Anagram fodder
Nina - hidden message
TILT - Thing(s) I Learned Today
Tichy - Tongue in cheek
DNF - Did Not Finish
BRB - Big Red Book (Chambers Dictionary)
CAD - Clue-As-Definition. Also known as “&Lit” (and literally)
WIA - Wordplay in answer (also known as a reverse clue)
225 - The fifteensquared blog

Thanks all

11a was set in MN not ND