What does the cryptic crossword clue "Risky situation upset U.S. monolith (5,5)" mean?

The wordplay uses an anagram. anagram of U.S. + MONOLITH = LIONSMOUTH The answer is LIONSMOUTH.

Risky situation upset U.S. monolith (5,5)

Daily Mail Cryptic #17656 | 2 Down | 2025-07-07 flower