Crossword Genius

Punter’s headgear (6)

Ross

I believe the answer is:

boater

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This might be a double definition.

'punter's' is the first definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps there's a link between them I don't understand?

'headgear' is the second definition.
(I know that boater is a type of hat)

Can you help me to learn more?

(Other definitions for boater that I've seen before include "Hat; eg, rower" , "Sailor's straw hat" , "one going in the junk?" , "Stiff hat made of straw" , "Hard flat straw hat, or person on water" .)

I've seen this clue in The Mirror.
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