What does the cryptic crossword clue "Consumes a portion of steakhouse supper (4,2)" mean?

The definition is "supper". The wordplay uses a hidden word. Hidden in "consumes a portion of steakhoUSE SUPper" The answer is USESUP.

Consumes a portion of steakhouse supper (4,2)

Guardian Cryptic #29581 | 5 Down | 2025-01-02 flower