What does the cryptic crossword clue "Pots of gravy in bottomless trousers (4,7)" mean?

The wordplay uses a charade (building blocks). DEEP (synonym="bottomless") + POCKETS (synonym="takes=") = DEEPPOCKETS The answer is DEEPPOCKETS.

Pots of gravy in bottomless trousers (4,7)

Guardian Cryptic #29599 | 8 Down | 2025-01-23 flower