The most common and most likely answer to this crossword clue is the 9 letter word HEADLIGHT
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More clues leading to the result HEADLIGHT
- Sheer and occasionally delicate part of a car
- Driver’s guide describing separate parts of mainland
- Run not especially serious car part
- Condition of giddiness brought by powerful source of illumination
- Indication of approaching driver feeling a bit woozy?
- One helping driver navigate when feeling giddy?
- One in the pits wears this halo?
Buddy explains!

The straight part
We know that "One helping driver navigate" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one helping driver navigate = headlight.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does HEADLIGHT mean?
HEADLIGHT noun- A bright light, with a lens and reflector, on the front of a motor vehicle (or originally a ship or train), designed to illuminate the road when driving at night; normally one of a pair.
- (chiefly in the plural) A woman's breast.
- (chiefly in the plural) A woman's erect nipples, partially masked by clothing.
- (chiefly in the plural) A jewel; especially a diamond.
- (chiefly in the plural) Lysergic acid diethylamide (LSD).