What does the cryptic crossword clue "Some boredom a hazard in US city (5)" mean?

The definition is "Some". The wordplay uses a hidden word. Hidden in "some boredOM A HAzard in us city" The answer is OMAHA.

Some boredom a hazard in US city (5)

Guardian Cryptic #29376 | 23 Down | 2024-05-07 flower