What does the cryptic crossword clue "Spoils historical period carriage (7)" mean?

The wordplay uses a charade (building blocks). HAUL (synonym="spoils, e.g. of a robbery") + AGE (synonym="AGE") = HAULAGE The answer is HAULAGE.

Spoils historical period carriage (7)

Guardian Cryptic #29166 | 6 Down | 2023-09-04 flower