What does the cryptic crossword clue "It relieves blockage caused by number occupying street (5)" mean?

The wordplay uses a container (one word inside another). TEN (synonym="TEN") in ST (synonym="ST") = STENT The answer is STENT.

It relieves blockage caused by number occupying street (5)

Guardian Cryptic #29562 | 15 Across | 2024-12-10 flower