Crossword Genius

Follow diamonds, say, in sports attire (9)

Ross

I believe the answer is:

tracksuit

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(Other definitions for tracksuit that I've seen before include "Loose-fitting top and bottom for athlete warming up" , "Kit" , "Warm loose-fitting garment for exercising" , "it's assumed, if exercising" , "athletic gear" .)

I've seen this clue in The Mirror.
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