What does the cryptic crossword clue "Means to hold up a bank? (9,4)" mean?

The definition is "Means to hold up a bank?". The wordplay uses a cryptic definition. Cryptic definition The answer is RETAINING WALL.

Means to hold up a bank? (9,4)

Times Cryptic #29165 | 10 Down | 2025-02-28 flower