Backing engagement for driver (7,4)
I believe the answer is:
reverse gear
I'm afraid I can't even guess how this answer relates to the clue.
Can you help me to learn more?
(Other definitions for reverse gear that I've seen before include "facility for drivers" , "that will facilitate a move back" .)
I've seen this clue in The Irish Independent.
Want a hint initially instead of a full solution?
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