What does the cryptic crossword clue "Vehicles circling old cathedral city in a rough manner (8)" mean?

The wordplay uses a charade (building blocks). COARS (synonym="COARS") + ELY (synonym="‘cathedral city’") = COARSELY The answer is COARSELY.

Vehicles circling old cathedral city in a rough manner (8)

Guardian Cryptic #29574 | 14 Across | 2024-12-24 flower