What does the cryptic crossword clue "Ed's fervour while manoeuvring powerful vehicles (4,5,6)" mean?

The wordplay uses an anagram. anagram of ED'S + FERVOUR + WHILE = FOURWHEELDRIVES The answer is FOURWHEELDRIVES.

Ed's fervour while manoeuvring powerful vehicles (4,5,6)

Daily Mail Cryptic #17021 | 7 Down | 2023-01-27 flower