Didn't you ask me for a crossword?

^{An entry in Fortnightly Topic Challenge #forty-seven: "Wacky Sudokus"}

Here’s that crossword you asked for… Sorry, what’s that – you didn’t ask me for a crossword??

TASK: Solve the puzzle (COMPLETELY) to find a concealed nine-letter word which tells you something that this puzzle is not…

Across
A) Shakespearean King
D) "Let it be so"
E) Organ of hearing
G) ____ Nordegren, model and ex-wife of Tiger Woods
I) Creditor’s legal right over a debtor’s property
K) UK Protestant Christian denomination formed in nineteen-seventy-two (inits)
M) Muslim ruler
N) Nostril

Down
A) Queue
B) Precipitation
C) French indefinite article
F) Highest point
H) Alternative name for ribosomal protein SA
I) Northern English dialect word: ‘be taught’
J) Major river in Africa
L) Animation still