They're driving hazards of course (7)

I believe the answer is:

bunkers

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'hazards of course' is the definition.
'bunkers' can be an answer for 'hazards' (bunker is a kind of hazard). I am not certain of the 'of course' bit.

I don't understand the rest of the clue.

Can you help me to learn more?

(Another definition for bunkers that I've seen is " They might contain soldiers, or golfers".)

I've seen this clue in The Irish Independent.

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