What does the cryptic crossword clue "What street vendor might use in pub altercation (6)" mean?

The wordplay uses a charade (building blocks). BAR (synonym="pub") + ROW (synonym="altercation") = BARROW The answer is BARROW.

What street vendor might use in pub altercation (6)

Guardian Cryptic #29271 | 10 Across | 2024-01-05 flower