Crossword Genius

Dressed, ready to drive off? (2,4)


I believe the answer is:

'ready to drive off?' is the definition.
(I've seen this before)

I can't explain the remainder of the clue.

(Other definitions for in gear that I've seen before include "Working effectively", "Out of neutral?", "Dressed up", "Ready to drive off", "Engaged".)

I've seen this clue in The Times.