Crossword Genius

Golf trousers (4,5)

Ross

I believe the answer is:

plus fours

(Other definitions for plus fours that I've seen before include "golfer's wear" , "Loose knee breeches" , "Golfing knickerbockers" , "Baggy sports trousers" , "Old golfwear" .)

I've seen this clue in The Mirror.
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