Unmasking the Criminal’s Cover: Can you solve the crossword puzzle?

Unmasking the Criminal’s Cover: Can you solve the crossword puzzle? - ASSUMEDNAME
Criminal's cover, maybe

Once upon a time in a bustling city, there was a cunning criminal who had managed to evade the police for years. He was known for his many heists and robberies, but no one knew his true identity.
One day, the police found a clue that would help them identify and catch the criminal. They found a diary that the criminal had left behind, and it was filled with pages and pages of different names.
The police officers were confused, but then one sharp-minded detective noticed that all the names were different from each other. That’s when it hit him – the criminal was using an ASSUMED NAME to hide his true identity while committing his crimes!
And just like that, the clever detective cracked the case and revealed the criminal’s true identity to the world.
From that day on, the term “criminal’s cover” had a new meaning – and it all boiled down to one simple crossword clue, ASSUMEDNAME.

ASSUMEDNAME