Broad-brimmed cowboy headgear (3-6,3)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
ten-gallon hat
(Other definitions for ten-gallon hat that I've seen before include "Texas headgear" , "Cowboy headgear" , "Item worn by a cowboy" , "Western headgear?" , "It features on the head of a cowboy" .)